Publications and Presentation by Dr.
Joseph D. Ortiz (Click on the links below to download the
papers)
Refereed Publications (Download the
data from the World Data Center for Paleoclimatology):
Yi, L., Yu,
H., Ortiz, J.D., Xu, X., Qiang, X., Huang, H.,
Xuefa Shi, X., and C. Deng, 2012, A reconstruction of late
Pleistocene relative sea level in the south Bohai Sea, China,
based on sediment grain-size analysis, Sedimentary Geology,
Early online release, (doi:
10.1016/j.sedgeo.2012.08.007).
Ortiz, J.D., Nof, D.,
Polyak, L., St. Onge, G., Lise-Pronovost, A., Naidu, S.,
Darby, D., and Brachfeld, S. 2012: The Late Quaternary flow
through the Bering Strait has been forced by the Southern
Ocean Winds. JPO, Early online release: 7/19/2012, (doi:
10.1175/JPO-D-11-0167.1).
Yi, L., Yu
H.-J., Ortiz, J.D.,
Xu, X.-Y., Chen, S.-L., Ge, J.-Y., Hao, Q.-Z., Yao, J., Shi,
X.-F., Peng, S.-Z., 2012, Late
Quaternary linkage of sedimentary records to three
astronomical rhythms and the Asian monsoon, inferred from a
coastal borehole in the south Bohai Sea, China,
Palaeogeography, Palaeoclimatology, Palaeoecology,
doi:10.1016/j.palaeo.2012.02.020.
Nof, D.,
Zharkov, V., Ortiz, J.D.,
Paldor, N. and E. Chassignet, 2012, The
arrested Agulhas retroflection, J. Mar. Res., 69, (Stern
Vol. Special Issue), 659-691.
Ortiz, J.D., Application
of Visible/near Infrared derivative spectroscopy to Arctic
paleoceanography, IOP Conf. Series: Earth and Environmental
Science 14, 2011, 012011 doi:10.1088/1755-1315/14/1/012011,
(http://iopscience.iop.org/1755-1315/14/1/012011/pdf/1755-1315_14_1_012011.pdf)
Nelson, D.B., Abbott, M.B., Steinman, B., Polissar, P.J. Stansell, N.D., Ortiz, J.D., Rosenmeier, M.F., Finney, B.P., and Riedel, J., 2011, Drought variability in the Pacific Northwest from a 6,000-yr lake sediment record, PNAS, doi/10.1073/pnas.1009194108.
Marchitto,
T.M., Muscheler, R., Ortiz,
J.D., Carriquiry, J., and A. van Geen, 2010,
Dynamical response of the tropical Pacific Ocean to solar
forcing during the early Holocene, Science, 330, 1378-1381, DOI:
10.1126/science.1194887.
Yurco, L., Ortiz, J.D., Leonid
Polyak, L., and Darby, D., Reflectance-based
clay
mineral cycles in Quaternary sediments from the Northwind
Ridge: implications for glacial-interglacial sedimentation
patterns in the Arctic Ocean, Polar Research, 2010, DOI:
10.1111/j.1751-8369.2010.00160.x.
Sorhannus, U., Ortiz, J.D., Wolf,
M., Microevolution
and
Speciation in Thalassiosira
weissfloggi, Protist, 161,237-249, 2009.
Lei, X., Ling, D., Mei-Xum, Z.,
Zhang, R.-P., van Geen, A. and Ortiz, J.D., Centennial
variations
in Sea surface temperature and productivity over the last
14ka from core PC14 off Baja California, [In Chinese with
English Abstract], Oceanologica et Limnologia Sinica,
40, 385-392, 2009.
Witter, D., Ortiz, J.D, Palm, S.
Heath, R., Budd, J., Assessing
the
Application of SeaWiFS Ocean Color Algorithms to Lake Erie,
Journal of Great Lakes Research, 35, 361-370, 2009.
Ortiz,
J.D., Polyak,
L.,
Grebmeier, J.M., Darby, D.A., Eberl, D.D., Naidu, S., Nof, D.,
Provenance
of
Holocene sediment on the Chukchi-Alaskan margin based on
combined diffuse spectral reflectance and quantitative X-Ray
Diffraction analysis. Global and Planetary Change, (68),
73-84, 2009.
Darby,
D.A., Ortiz, J.D.,
Polyak, L., Lund, S., Jakobsson, M., Woodgate, R.A., The
role of currents and sea ice in both slowly deposited
central Arctic and rapidly deposited Chukchi-Alaskan margin
sediments, Global
and Planetary Change, (68), 58-72, 2009.
Adler,
R.E., Polyak, L., Ortiz,
J.D., Kaufman, D.S., Channell, J.E.T., Xuan, C.,
Grottoli, A.G., Sellen, E., Crawford, K.A., Sediment
record
from the western Arctic Ocean with an improved Late
Quaternary age resolution: HOTRAX core HLY0503-8JPC,
Mendeleev Ridge. Global
and
Planetary Change, (68), 18-29, 2009.
Brachfeld,
S.,
Barletta, F., St-Onge, G., Darby, D.A., Ortiz, J.D., Detrital
and
diagenetic magnetic signatures of sediment supply and water
column stratification in Holocene sedimentary records from
the eastern Chukchi Sea. Global and Planetary Change, (68), 100-114, 2009.
Polyak,
L., Bischof, J., Ortiz,
J.D., Darby, D.A., Channell, J.E.T., Xuan, C., Kaufman,
D.S., Løvlie, R., Schneider, D.A., Eberl, D.D., Adler,
R.E., Council, E.A., Late Quaternary
stratigraphy
and sedimentation patterns in the western Arctic Ocean.
Global
and
Planetary Change, (68), 5-17, 2009.
Marchitto, T.M., Lehman, S.J., Ortiz, J.D.,
Fluckinger, J., and A. van Geen, Marine
radiocarbon
evidence for the mechanism of deglacial atmospheric CO2
rise (8 June 2007), Science 316 (5830),
1456. [DOI: 10.1126/science.1138679] (Supplemental
Online
Material).
Marchitto, T.M., Lehman, S.J., Ortiz, J.D.,
Fluckinger, J., and A. van Geen, Marine
radiocarbon
evidence for the mechanism of deglacial atmospheric CO2
rise, Science, / www.sciencexpress.org / 10 May 2007 /
Page 5 / 10.1126/science.1138679. (Advance online publication
of above article).
Dean, W.
E., Zheng, Y., Ortiz,
J.D., and A. van Geen, Sediment
Cd and Mo accumulation in the oxygen-minimum zone off
western Baja California linked to global climate over the
past 52 kyr, Paleoceanography, 21, PA4209,
doi:10.1029/2005PA001239, 2006.
O'Connell,
S., Ortiz, J.D.,
Morrison, J., Connecting
Urban
Students With Their Rivers Generates Interest And Skills In
The Geosciences, Journal of Geoscience Education, 52,
462-471, 2004.
Ortiz,
J.D.,
O’Connell, S., DelViscio, J., Dean, W., Carriquiry, J.,
Marchitto, T., Zheng, Y., and A. van Geen, Enhanced
marine
productivity off western North America during warm climate
intervals of the past 52 kyr, Geology, 32(6),
521-524, 2004.
Ortiz,
J.D. and
O’Connell, S., Toward
a non-linear grayscale calibration method for legacy
photographic collections, in P. Francus, J. Thurow,
(eds.) Developments in Paleocenvironmental Research Series:
Image Analysis, sediments and paleoenvironmental
Reconstruction, 121-137, 2004.
A. van
Geen, Y. Zheng, J. M. Bernhard, K. G. Cannariato, J.
Carriquiry, W. E. Dean, B. W. Eakins, J.D. Ortiz, J.
Pike, and other participants, 1999
RV Melville Baja
California cruise, On the preservation of laminated
sediments along the western margin of North America,
Paleoceanography, 18(4), 1098, doi:1029/2003PA000911, 2003.
Peteet,
D., Beck, W., Ortiz,
J.D. O’Connell, S, Kurdyla, D., and Mann, D. Rapid
Vegetational
and Sediment Change from Rano Aroi Crater, Easter Island,
in Easter Island, Scientific Exploration into the World's
Environmental Problems in Microcosm J. Loret and J.T.
Tanacredi, Eds., Kluwer, Academic/Plenum Publishers, NY,
79-89, 2003.
O'Connell,
S.,
and Ortiz, J.D. Data
Report: Calcium carbonate stratigraphy from sample
measurements and diffuse spectral reflectance at Site 1090,
ODP Leg 177. In
Gersonde, R., Hodell, D.A., and Blum, P. (Eds.), Proc. ODP,
Sci. Results, 177 [Online]. URL:
<http://www-odp.tamu.edu/publications/177_SR/chap_06/c6_.htm
>.
[Cited2002-08-20],
2002.
Zeebe,
R.E, Sanyal, A., Ortiz,
J.D., and D.A. Wolf-Gladrow, A
theoretical study of the kinetics of the boric acid - borate
equilibrium in seawater, Marine Chemistry, 73,
113- 124, 2001.
Ortiz, J.D., Mix,
A.C., Wheeler, P.A., and R.M. Key, Anthropogenic
CO2 invasion into the northeast Pacific based on
concurrent δ13CDIC and nutrient
profiles from the California Current, Global
Biogeochemical Cycles, 14, 917-929, 2000.
deMenocal,
P., Ortiz, J.D.,
Guilderson, T., and M. Sarnthein, Coherent
high-
and low-latitude Climate Variability during the Holocene
Warm Period, Science,
288, 2198-2202,1999.
deMenocal,
P., Ortiz, J.D., Guilderson, T.,
Adkins, J., Sarnthein, M., Baker, L., and M. Yarusinsky, Abrupt
onset
and terminations of the African Humid Period: Rapid climate
responses to gradual insolation forcing, Quat. Science Reviews, 19,
347-361, 1999.
Ortiz, J. D. and F.
R. Rack, Non-invasive
sediment
monitoring methods: Current and future tools for
high-resolution climate studies, in Reconstructing Ocean
History: A window into the future, Kluwer, New York,
343-380, 1999.
Ortiz, J.D., Mix, A.,
Harris, S., and S. O'Connell, Diffuse
spectral
reflectance as a proxy for percent carbonate content in
North Atlantic sediments, Paleoceanography, 14, 171-186, 1999.
Ortiz,
J.D.,
O'Connell, S., Leg 162 Shipboard Sedimentologists, and A. Mix,
Data
report:
Spectral reflectance observations from Leg 162 recovered
sediments, in Proc. ODP, Sci. Results, 162, Raymo, M.E.,
Jansen, E., Blum, P. and Herbert, T.D. (Eds.), College
Station, TX, (Ocean Drilling Program), 259-264, 1999.
Hyun, S.,
Ortiz, J.D., Raymo,
M.E., and A. Taira, Low-frequency
oscillations
in Site 983 sediments: Relationships between carbonate and
productivity proxies Proc. ODP, Sci. Results, 162, in
Raymo, M.E., Jansen, E., Blum, P. and Herbert, T.D. (Eds.),
College Station, TX, (Ocean Drilling Program), 197-207, 1998.
Ortiz,
J.D., and A.C.
Mix,
Comparison of Imbrie-Kipp transfer function and Modern
Analog Temperature estimates using sediment trap and coretop
foraminiferal faunas, Paleoceanography, 12,
175-190, 1997
Extended Abstracts
Ortiz, J.D., Andrews, J.T.
and D.D. Eberl, Geographic distribution of Labrador Sea and
Baffin Bay sediment mineralogy based on visible reflectance
derivative spectroscopy, 41th International Arctic Workshop,
Montral, CA, 2-4 March, 2011. (Online: http://www.arcticworkshop2011.uqam.ca/upload/files/41aw_abstact_volume.pdf)
Assareh,
A., Volkert, L.G., and J.D.
Ortiz, 2010, Evolutionary Selection of Regressional
Predictors to Enhance the Performance of Microfossil-Based
Paleotemperature Proxies, ICMLA, 379-385, 2010 Ninth
International Conference on Machine Learning and Applications.
(Online: http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5708860)
Ortiz,
J.D.,
Mineralogy of Labrador Sea and Baffin Bay sediment inferred
from diffuse spectral reflectance, 40th International Arctic
Workshop, Winterpark CO, 10-12, March, 2010. (Online: http://instaar.colorado.edu/AW/abstract_details.php?abstract_id=47).
Crane,
R. Sadallah, J., and J.D.
Ortiz, Sedimentological Analysis of Holocene and Glacial
Events in Central Baffin Bay, Labrador Sea: Constraints from
Reflectance and Elemental Analysis, 40th International Arctic
Workshop, Winterpark CO, 10-12, March, 2010.(Online: http://instaar.colorado.edu/AW/abstract_details.php?abstract_id=70).
Sadallah,
J., Crane, R., and J.D.
Ortiz, Sedimentological analysis of glacial events in
Baffin Bay, Labrador Sea: constraints from grain size and
elemental analyses, 40th International Arctic Workshop,
Winterpark CO, 10-12, March, 2010.(Online: http://instaar.colorado.edu/AW/abstract_details.php?abstract_id=73).
Walton,
M., Jennings, A., Andrews, J., Kilfeather, A., O’Cofaigh, C.,
Ortiz, J.,
Paleoceanographic reconstruction of West Greenland continental
shelf at mouth of Disko Bugt, West Greenland 40th
International Arctic Workshop, Winterpark CO, 10-12, March,
2010.(Online: http://instaar.colorado.edu/AW/abstract_details.php?abstract_id=83).
Unrefereed
Publications
Ortiz, J.D.
Falkner, K.K., Matrai, P.A., and R.A. Woodgate, From the Guest
Editors: An Introduction to the Special Issue, Oceanography
24(3): 14–16, http://dx.doi.org/10.5670/oceanog.2011.49,
2011.
Ortiz,
J.D., Undergraduate
Research, Kent
State University Faculty Professional Development Center
Online Newsletter, Perspectives, April 2008 issue, cited
7-2-2008, (Description of this online journal:
http://fpdc.kent.edu/resources/publications/perspectives/about_perspectives.html).
Ortiz,
J.D.,
Paleoceanography, Biological Proxies: Temperature
Proxies,
Census Counts, in Encyclopedia of Quaternary Science,
Ed. Scott A. Elias, Elsevier B.V, ISBN 0 44 451919 X,
1693-1699, 2006.
Darby,
D., Polyak, L., Cutter, G., Edwards, M., Ortiz, J., and
Berger, G., HLY0501
Cruise
Report. UNOLS, USCG, and NSF, 38pp, 2006.
CoreWall
Steering Committee (Higgins, S., Hovan, S., Ito, E., Miller,
J., Morin, P. Neal, C., Ortiz, J.,
Quoidbach, D., and Snyder, W.), Workshop
on
the Development of the CoreWall Suite of Applications,
Scientific Drilling, No. 3, 58-60, 2006,
doi:10.2204/iodp.sd.3.15.2006. (Separate
report
to NSF)
Brigham-Grette,
J., S. Anderson, J. Clague, J. Cole, P. Doran, A. Gillespie,
E. Grimm, P. Guccione, K. Hughen, S. Jackson, T. Jull, S.
Leavitt, R. Mandel, J.
Ortiz, D. Rodbell, C. Schweger, A. Smith, B. Styles, Petroleum
Geologists'
Award to Novelist Crichton Is Inappropriate, Eos Trans.
AGU, 87(36), 364, 2006, doi:10.1029/2006EO360008.
Hubbard,
M. J., D. A. Waugh and J.
D. Ortiz, Provenance
determination
of archaeological cherts by vis/nir diffuse reflectance
spectrometry, The Compass, vol. 78, no. 3, 2004.
O'Connell,
S., Ortiz, J.D.,
Morrison, J., Connecting
with
the River, Geotimes, vol. 48, no. 9, 14-17, 2003 (Cover Story).
Ortiz,
J.D., Application
of
non-invasive sedimentological methods to sediments from
western pacific marginal basins, In C.-T. A. Chen (ed.)
Marine Environment: The Past, Present and Future, The Fuwen
Press, Kaohsiung, Taiwan, 128-137, 2002.
Ortiz,
J.D., Paleoceanography
and Paleoclimate, Geotimes, 46(7): 42-42, July, 2001.
Ortiz,
J.D., Harris,
S.E., Mix, A.C. and the Leg 177 Shipboard Scientific Party, SCAT
Reflectance:
Shedding some light on sediment mineralogy, JOI-USSSP
Newsletter vol. 11 no. 2, p. 14-15,20, July 1998.
Abstracts
Mihindukulasooriya,
L., Ortiz, J.D.,
Abbott, M., and Pompeani, D., 2011, Reconstruction of Holocene
Paleoclimatic variability using high-resolution diffuse
spectral reflectance data from Cleland Lake, British Columbia,
2011 GSA Annual Meeting in Minneapolis (9–12 October 2011),
Geological Society of America Abstracts with Programs, Vol.
43, No. 5, p. 469.
Ortiz, J.D., and D. Nof,
2011, The influence of southern ocean winds and northern
hemisphere meltwater on the Atlantic Meridional Overturning
Circulation, Northeastern (46th Annual) and North-Central
(45th Annual) Joint Meeting (20–22 March 2011), Geological
Society of America Abstracts with Programs, Vol. 43, No. 1, p.
100.
Mihindukulasooriya,
L., Ortiz, J.D.,
Abbott, M., and D. Pompeani, 2011, Evaluation of Lake Sediment
composition and productivity using high resolution diffuse
spectral reflectance data from Cleland Lake, Southwestern
Canada, Northeastern (46th Annual) and North-Central (45th
Annual) Joint Meeting (20–22 March 2011), Geological Society
of America Abstracts with Programs, Vol. 43, No. 1, p. 162.
Nwaodua, E., and
J.D. Ortiz, 2011, Late
Quaternary clay mineral and iron oxide distributions on the
Bering and Chukchi Sea Shelves: A proxy for ocean circulation
through the Bering Strait, Geological Society of America
Abstracts with Programs, Vol. 43, No. 1, p. 61.
Crane, R.,
Virost, A., Brenizer, L, and J.D.,
Ortiz, 2011, Marine sedimentological analysis from
the Hudson Strait, Labrador Sea, Northeastern (46th Annual)
and North-Central (45th Annual) Joint Meeting (20–22 March
2011), Geological Society of America Abstracts with Programs,
Vol. 43, No. 1, p. 61.
Siriwardana, C.,
Ortiz, J.D., Polyak,
L., Witter, D., and Council, E., 2011, Paleoclimatic and
mineralogical characterization of downcore VNIR, VIS DSR, and
XRF data from the northwind ridge area in the Central Arctic
Ocean, Northeastern (46th Annual) and North-Central (45th
Annual) Joint Meeting (20–22 March 2011), Geological Society
of America Abstracts with Programs, Vol. 43, No. 1, p. 62.
Brenizer, L., Ortiz, J.D., Abbott, M.,
and R. Crane, 2011, Drought history of Scout Lake during the
Holocene based on sediment lightness, Northeastern (46th
Annual) and North-Central (45th Annual) Joint Meeting (20–22
March 2011), Geological Society of America Abstracts with
Programs, Vol. 43, No. 1, p. 111.
Schiebel, R.,
Ivanova, E., J.D. Ortiz,
Reconstruction of surface ocean stratification from species
assemblages of planktic foraminifers, ICP-10, 2010.
Farinacci, M.D.,
Ortiz, J.D.;
Schumacher, G.A. , 2010, Evidence of orbital forcing upon the
Mississippian Vinton Member of the Logan Formation, Ohio.
Abstracts with Programs - Geological Society of America Vol.
42, no. 1. Boulder, CO: Geological Society of America (GSA),
Mar. 2010.
Crane, R.E.,
Farinacci, M.D., Sadallah, J.M., Ortiz, J.D., 2010, Sedimentological analysis
of Holocene and glacial events in Baffin Bay, Labrador Sea.
Abstracts with Programs - Geological Society of America Vol.
42, no. 1. Boulder, CO : Geological Society of America (GSA),
Mar. 2010.
Ranasinghage, P.
N., Ortiz, J. D.,
Moore, A. L., Siriwardana, C.; McAdoo, B. G., 2010, Signatures
of Paleo-coastal Hazards in Back-barrier Environments of
Eastern and Southeastern Sri Lanka, American Geophysical
Union, Fall Meeting 2010, abstract #NH21A-1397
D.L. Witter, J.D.
Ortiz, S. Palm, R.T. Heath, and J.W. Budd, Evaluating
strategies for retrieving Lake Erie chlorophyll a
concentrations from SeaWiFS observations, 52nd Annual
Conference on Great Lakes Research, International Association
for Great Lakes Research, May 2009.
A.K. Ali, D.L. Witter, and J.D. Ortiz,
Multivariate Assessment of Remotely Derived Water Quality
Parameters in the Western Basin of Lake Erie, 52nd Annual
Conference on Great Lakes Research, International Association
for Great Lakes Research, May 2009.
D.L. Witter, J.D.
Ortiz, S. Palm, R.T. Heath and J.W. Budd, Assessing the
application of SeaWiFS ocean color algorithms to Lake Erie,
American Geophysical Union, Fall Meeting, Dec. 2008.
Ranasinghe,
P. N. Ortiz, J., Moore, A, and Siriwardana, C.H.E.R., 2009,
Non invasive multi proxy approach to recognize paleo-coastal
environmental signals, GSA 2009, Portland.
Ranasinghe,
P. N. Ortiz, J., Moore, A, and Siriwardana, C.H.E.R., 2009,
Paleo environmental reconstruction of lagoonal strata from Sri
Lanka using multiple physical properties proxies to assure
stratigraphic continuity, AGU 2009 , San Francisco.
Vlack, Y.
A.; Ortiz, J. D.;
Haynes, J. T.; Curry, B. B.; Carlson, E. H.; Grant, N. K.,
Identifying clays in sedimentary sequences utilizing a new
clay mixture spectral library developed with spectral
reflectance, Geological Society of America, Abstracts with
Programs, Vol. 40, No. 2, Pg. 56. 2008.
Vlack, Y.
A.; Ortiz, J. D.;
Curry, B. B.; Haynes, J. T.; Grant, N. K.; Carlson, E. H.,
Application of diffuse spectral reflectance for clay mineral
identification in sedimentary sequences, AAPG Bulletin, Annual
Convention and Exhibition Abstracts, Vol. 17, Pg. 208. 2008.
Fela,
N.A., Duff, M.P., Mills, L.R., Ortiz, J.D.,
Wijekoon, Nishanthi, and Baeseman, Jennifer, Summer
distribution
of total suspended particulates in the western basin of Lake
Erie and Sandusky Bay, North-Central Section - 42nd
Annual Meeting (24–25 April 2008), Paper No. 36-13, 2008.
Ortiz,
J.D., Polyak,
L., Adler, R., Jakobsson, M., Darby, D., Late Pleistocene
sediment provenance on the Mendeleev Ridge, Arctic Ocean, from
XRF Elemental Analysis and Diffuse Spectral Reflectance
measurements, AGU, 88(52), Fall Meet. Suppl., PP51A-0184.,
2007.
Orsburn,
C., Ortiz, J. D.,
Polyak, L., Grebmeier, J. M., Darby, D., Distribution of clay
minerals on the Alaskan margin near Barrow Canyon revealed by
Diffuse Spectral Reflectance measurements, AGU, 88(52), Fall
Meet. Suppl., PP51A-0188, 2007.
Rand, J.,
Darby, D. A., Ortiz, J.,
Cook, M. Y., Keigwin,
L., The Holocene Record of the Arctic Oscillation and a
Possible Link to Solar Variability, Eos Trans. AGU, 88(52),
Fall Meet. Suppl., Abstract PP51A-0187, 2007.
Adler, R.
Polyak, L., Ortiz, J.,
Grottoli, A., Kaufman, D., Late Quaternary Paleoceanography of
the Mendeleev Ridge, Central Arctic Ocean: Planktonic
Foraminiferal Composition and Stable Isotopy, AGU, 88(52),
Fall Meet. Suppl., PP51A-0183, 2007.
Robinson,
K. D., Rosenmeier, M. F., Ortiz, J.D. ,
Holocene Lake Productivity and Inferred Climate Histories From
High-Altitude Sites Within the Baroon Taiga Mountains,
Northern Mongolia, Eos Trans. AGU, 88(52), Fall Meet. Suppl.,
Abstract PP33D-06, 2007.
Polyak,
L., Adler, R., Curry, W.B., Ortiz, J.,
Application of Foraminiferal Stable Isotopy to Quaternary
Stratigraphy and Paleoceanography of the Central Arctic Ocean,
Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract PP42B-04,
2007.
Ortiz,
J.D.,
Polyak, L., Jakobsson, M., Darby, D., Preliminary evidence of
Milankovitch cyclicity recorded in sediment brightness (L*)
records from central Arctic Ocean sediments recovered by the
HOTRAX Program, North-Central Section–40th Annual Meeting
(20–21 April 2006), Geological Society of America Abstracts
with Programs, Vol. 38, No. 4, p. 28, Paper No. 21-4, 2006.
Ortiz,
J.D.;
Polyak, Leonid; Darby, Dennis, Diffuse spectral reflectance of
Arctic Ocean sediment cores provides new insights into changes
in sediment sources, XIX AMQUA Biennial Meeting, Program with
Abstracts 2006.
Ortiz,
J.D.,
Munro-Stasiuk, M.J., Hart, B.I., Mokaren, D.M., Arnold, B., Chermansky, J.V.,
Vlack, Y.A., Inquiry based Teacher Professional development
from a multidisciplinary perspective: The NEOGEO Lake Erie
Earth Science Field Trip, Eos Trans. AGU, 87(52), Fall Meet.
Suppl., ED43E-0960, 2006.
Ortiz,
J.D.,
Polyak, L., Jakobsson, M., Darby, D., Quaternary Inferences on
Central Arctic Ocean Circulation and Sediment Provenance Based
on Diffuse Spectral Reflectance Analysis, Eos Trans. AGU,
87(52), Fall Meet. Suppl., OS53B-1098, 2006.
Polyak,
L., Ortiz, J.D.,
Darby, D.A., Sediment Records From the Alaskan/Chukchi Slope
Suggest High Meltwater Inputs From the Northern Laurentide
Margin During the Last Deglaciation, Eos Trans. AGU, 87(52),
Fall Meet. Suppl., OS52B-08, 2006.
Witter,
D.L., Ortiz, J.D.,
Sheridan, S.C., Munro-Stasiuk, M.J., Myers, V.J., Schwenk,
P.L., Vlack, Y.A., Arnold,
B.J., Bosley, B.L., Chermansky, J.V., Hart, B.I., Kline, W.T.,
Bringing Earth Science to the K-12 Classroom: Implementation
and Impacts of a Five-Day Professional Development Workshop
for Teachers, Eos Trans. AGU, 87(52), Fall Meet. Suppl.,
ED43E-.0959, 2006.
Wijekoon,
N., Ortiz, J.,
Munro-Stasiuk, M. , Remote sensing of total suspended
particulates in the western basin of Lake Erie, North-Central
Section–40th Annual Meeting (20–21 April 2006), Geological
Society of America Abstracts with Programs, Vol. 38, No. 4, p.
7, Paper No. 4-5, 2006.
Wijekoon,
N., Ortiz, J.D.,
Remote monitoring of a coastal wetland in LakeErie. 5th Annual
New York State Remote Sensing Symposium on Remote Sensing
Across the Great Lakes, Rochester, New York, 2006
Wijekoon,
N., Ortiz, J.D.,
Witter, D.L., Munro-Stasiuk, M. J., The distribution of
surface reflector patterns at Old Woman Creek Estuary in
summer 2005. National Estuarine Research Reserve Association
and System (NERRA/NERRS) annual conference, Sawmill Creek
Resort and Conference Center, Huron, OH, 2006
Wijekoon,
N., Ortiz, J.D.,
Witter, D.L., Munro-Stasiuk, M. J., A satellite remote sensing
monitoring program for suspended sediment concentration at Old
Woman Creek estuarine reserve, Ohio. Water Resources Research
Institute (WRRI) annual conference, Kent State University,
Kent, OH, 2006
Wijekoon,
N., Ortiz, J.D.,
Witter, D.L., Munro-Stasiuk, M. J., Synoptic survey of
suspended particulates in surface water at Old Woman Creek
estuary using calibrated Landsat TM imagery. Researchers’ Day
Meeting, Old Woman Creek National Estuarine Research Reserve,
Huron, OH, 2005.
Wijekoon,
N., Ortiz, J.D.,
Witter, D.L., Munro-Stasiuk, M. J., A satellite remote sensing
monitoring program for suspended sediment concentration at Old
Woman Creek estuarine reserve, Ohio. The 18th biennial
conference of the Estuarine Research Federation, Norfolk, VA,
2005
Feucht,
D., Ortiz, J.D.,
Munro-Stasiuk, M., and Witter, D.L., Partitioning of total
suspended particulates in the Western Basin of Lake Erie and
Sandusky Bay by laser particle size analysis, North-Central
Section–40th Annual Meeting (20–21 April 2006), Geological
Society of America Abstracts with Programs, Vol. 38, No. 4, p.
7, Paper No. 4-7, 2006.
Witter,
D.L., Ortiz, J.D,
Munro-Stasiuk, M.J., and Sheridan, S.C., Teaching earth system
science from an inquiry-based perspective, North-Central
Section–40th Annual Meeting (20–21 April 2006), Geological
Society of America Abstracts with Programs, Vol. 38, No. 4, p.
24, Paper No. 18-7, 2006.
Yurco,
L.N., Ortiz, J.D.,
and Polyak, L., Glacial-interglacial grain size variations on
the Northwind Ridge, Arctic Ocean, Measured by Laser Particle
Size Analyzer, North-Central Section–40th Annual Meeting
(20–21 April 2006), Geological Society of America Abstracts
with Programs, Vol. 38, No. 4, p. 69, Paper No. 30-37, 2006.
Witter,
D.L., Ortiz, J.D.,
Munro-Stasiuk, M.J., and Sheridan, S., Dovetailing science
content instruction and pedagogical training for successful
GK-12 fellow preparation, North-Central Section–40th Annual
Meeting (20–21 April 2006), Geological Society of America
Abstracts with Programs, Vol. 38, No. 7, p. 363, Paper No.
145-19, 2006.
Palm,
S.J., Witter, D.L., Ortiz,
J.D., Heath, R.T., and Budd, J.W., Ground-truthing
satellite chlorophyll concentration algorithms in Lake Erie,
North-Central Section–40th Annual Meeting (20–21 April 2006),
Geological Society of America Abstracts with Programs, Vol.
38, No. 7, p. 24, Paper No. 4-3, 2006.
Marchitto,
T.M.,
Lehman, S.J., Ortiz,
J.D., van Geen, A., Intermediate
water 14C evidence for the mechanism of deglacial
CO2 increase,
Eos Trans. AGU, 87(52),
Fall Meet. Suppl. PP43C-06, 2006.
Marchitto,
T. M., S. J. Lehman, Ortiz,
J.D. and A. van Geen, The oceans great deglacial CO2 release:
Evidence from deep sea CaCO3
preservation and intermediate water 14C
activity, 16th Annual V. M. Goldschmidt Conference, Melbourne,
August 27-September 1, 2006.
Witthaus,
L.,
Abbott, M., Anderson, L., Ortiz, J., Holocene
Paleoclimate From Stable Isotope Geochemistry Of Squanga Lake,
Southern Yukon Territory, Canada, Eos Trans. AGU, 87(52),
Fall Meet. Suppl., PP51C-1153, 2006.
Munro-Stasiuk,
M.J., Benko, T., Czajkowski, K., Sheridan, S., Merry, C.,
Witter, D.L., and Ortiz,
J., Incorporating geospatial technology into the K-12
curriculum through teacher professional development,
North-Central Section–40th Annual Meeting (20–21 April 2006),
Geological Society of America Abstracts with Programs, Vol.
38, No. 4, p. 24, Paper No. 18-8, 2006.
Carriquiry
J.D., Sanchez A., van Geen A., Ortiz J.D.,
Marchitto T., Zheng Y., Levi C., and Dean W. 2005. Contrasting
Ocean Circulation and Hydrography of the Northeast Pacific
Ocean: Holocene vs Last Glacial conditions. PAGES Second Open
Science Meeting 10-12 August 2005, Beijing, China.
Witthaus,
L., Abbott, M.B., Ortiz
J., and Anderson, L. Holocene paleoclimate
reconstructions from stable isotope geochemistry in carbonate
lakes from the southern Yukon Territory, Canada. NE GSA,
Saratoga Springs, 2005.
Marchitto,
T. M., Ortiz, J.D.
Carriquiry, C. Levi, and A. van Geen, A 14,000 year
foraminiferal trace metal record of ENSO-influenced upwelling
near southern Baja California, American Geophysical Union 2005
Fall Meeting, San Francisco, December 5-9, 2005.
Marchitto,
T. M., J. D. Ortiz, J.
D. Carriquiry, A. Sanchez, W. Dean, Y. Zheng, C. Levi,
and A. van Geen, ENSO-influenced upwelling off of Southern
Baja California since the last glaciation, American
Geophysical Union 2004 Fall Meeting, San Francisco, December
13-17, 2004.
O’Connell,
S., and J.D. Ortiz,
Connecting with the River leads to an enhanced view of science
for minority high school students, Abstract submitted to GSA
Annual Meeting, Geological Society of America Abstracts with
Programs, Vol. 36, No. 5, Denver 7-10 November, 2004.
Marchitto,
T, Lehman, S., Ortiz,
J.D,
Carriquiry, J., Sanchez, A., Dean W., Zheng, Y, Levi, C.,
Vicarelli, M., and van Geen, A., ENSO dynamics and baja
California oxygen minimum zone strength since the last
glaciation, Abstract submitted to GSA Annual Meeting,
Geological Society of America Abstracts with Programs, Vol.
36, No. 5, Denver 7-10 November, 2004.
Fleisher,
M.O., Anderson, R.F., Ortiz,
J.D., and A. vanGeen, Radionuclide Proxies for Particle
Flux and Productivity Changes during the Last 40 ka from the
Pacific Margin of Baja California, 8th
International Conference on Paleoceanography (ICP VIII)
Program and Abstracts, p. 85, Biarritz, France, 5-10 September
2004.
Ivanova
E.V., Ortiz J.D., Schiebel
R, Wilsbacher M., Paleoceanographic variability in the Arabian
Sea during the last 250 kyr, 8th International
Conference on Paleoceanography (ICP VIII) Program and
Abstracts, p. 90, Biarritz, France, 5-10 September 2004.
Marchitto,
T, Lehman, S., Ortiz,
J.D,
Carriquiry, J., Sanchez, A., Dean W., Zheng, Y, Levi, C.,
Vicarelli, M., and van Geen, A., ENSO dynamics and baja
California oxygen minimum zone strength since the last
glaciation, 8th International Conference on
Paleoceanography (ICP VIII) Program and Abstracts, p. 7-8,
Biarritz, France, 5-10 September 2004.
van Geen,
A., Levi, C., Ortiz
J.D., Zheng, Y., Marchitto, T.M., Carriquiry, J.D.,
Decadal Record of Variations in Thermocline Structure of the
Eastern Pacific from Soledad Basin, Baja California, 8th
International Conference on Paleoceanography (ICP VIII)
Program and Abstracts, p. 210, Biarritz, France, 5-10
September 2004.
Seders,
L.A, Smith, A.J., Palmer, D.F., Namjesnik-Dejanovic, K, and J.D. Ortiz, Water
Quality and Ostracodes: Tracking Changes in Road Salt and
Nitrate in a Northeast Ohio Watershed, North-Central GSA,
Geological Society of America Abstracts with Programs, 36(3),
p. 12, September 2004.
Ortiz,
J.D.,
O’Connell, S.E., DelViscio, J., L., vanGeen, A., and Luc
Beaufort, Regime Shifts in Productivity off Baja California
during the Late Pleistocene?, 2003 Fall AGU Meeting, EOS
Trans. AGU, 83(47), Fall Meet. Suppl., Abstract OS22C-04,
2003.
Ivanova
E., Beaufort, L., Vidal, L., and J.D. Ortiz,
Paloceanographic Changes in the Eastern Equatorial Pacific
During the Late Pleistocene: Preliminary Results of Core
MD02-2529 From the IMAGES VIII MONA Cruise, 2003 Fall AGU
Meeting, EOS Trans. AGU, 83(47), Fall Meet. Suppl., Abstract
OS31B-0211, 2003.
Anderson,
B., Fleisher, M., Ortiz,
J.D., Y. Zheng, and A. van Geen, Climate-related changes
in particle flux and export production during the last 40 ka
from the Pacific margin of Baja, Mexico, 2003 Fall AGU
Meeting, EOS Trans. AGU, Fall Meet. Suppl., Abstract OS22C-06,
83(47), 2003.
Ortiz,
J.D.,
O’Connell S., DelViscio, J., Dean, W., Carriquiry,
J.D., Marchitto, T., Zheng, Y.,
and A. van Geen Low latitude control of marine
production off the western margin of North America during the
last 52 kyr?, Annual GSA meeting, Geological Society of
America Abstracts with Programs, Vol. 35, No. 6, p. 540,
September 2003.
Wilsbacher,
M.C., Ortiz, J.D.,
S. O’Connell, Zheng, Y., Marchitto, T., Carriquiry, J., Dean,
W., A. van Geen, Mid-holocene climate reconstruction in the
soledad basin using planktic foram assemblages, Geological
Society of America Abstracts with Programs, 35(6), p. 192,
September 2003.
Hubbard,
J.M, Waugh, D.A., and J.D.
Ortiz, Application of VIS/nIR spectral reflectance in
sourcing and recognition of heat-treated cherts, Geological
Society of America Abstracts with Programs, 35(6), p. 399,
September 2003.
Marchitto
T., Vicarelli, M., Carriquiry J., Dean W., Ortiz J.D., Zheng,
Y., van Geen, A.,
Ventilation influence on Baja California oxygen minimum zone
strength since the LGM: Constraints from benthic foraminiferal
Mg/Ca,
XVI INQUA
Congress Program with Abstracts, Paper No. 18-5, p. 101, Reno
Nevada, July 23 - 30, 2003.
Stefano,
C., Ortiz, J.D.,
and Carlson, E.H., Clay Mineral Identification by Diffuse
Spectral Reflectance, GSA North-Central Section, 37th Annual
meeting, Abstracts with Programs 35(2), 13-5, (Kansas City,
MO), Geological Society of America, 2003.
Delvisico,
J.G., OConnell, S., Ortiz,
J.D., Diffuse
Spectral Reflectance Records from the Northeast Pacific Oxygen
Minimum Zone: Evidence for Rapid Shifts in Carbonate and
Organic Carbon throughout the Holocene, AGU 2002 Spring
Meeting, EOS Trans. AGU, 83(19), Spring Meet. Suppl., Abstract
OS22A-08, 2002.
Ortiz,
J.D.,
Quaternary Marine Productivity Variations off Baja California,
American Quaternary Association, 17th Biennial
Meeting, (AMQUA 2002), Program and Abstracts, (Ed. D.R.
Yesner), University of Alaska, Anchorage, p. 105-107, 2002.
Ortiz,
J.D., and
O’Connell, S., Toward a non-linear grayscale calibration
method, in Image analysis, Sediments and Paleoenvironments,
Nov 8-10th, (Conveners: P. Francus, R. Bradley, and
J. Thurow), Program and Abstracts, University of
Massachusetts, Amherst, p. 20, 2001.
O’Connell,
S., Ortiz, J.D.,
vanGeen, A., and Zheng, Y., Rapid changes in organic carbon
preservation in sediments from coastal Baja California are
linked to global climatic changes, Geo-Odyssey, GSA Annual
meeting Abstracts with Programs 33(6), A-159, (Boston, MA),
Geological Society of America, 2001.
deMenocal,
P., Ganssen, G., Marchitto, T., and Ortiz, J.D.,
Holocene variability of the Atlantic and Indian subtropics,
Geo-Odyssey, GSA Annual meeting Abstracts with Programs 33(6),
A-159, (Boston, MA), Geological Society of America, 2001.
Ortiz,
J.D.,
Marchitto, T.M., Cariquiry, T.M., Zheng, Y., Do Millennial
scale carbonate and organic carbon cycles in Late Pleistocene
sediments off Baja California reflect production or
preservation?, EOS Trans. AGU, 82(20), Spring Meet. Suppl.,
Abstract OS41A-10, S226, 2001.
Marchitto,
T.M., Cariquiry, J., Ortiz,
J.D., and van Geen, A., Uvigerina, from laminated
sediments may record bottom water nutrient levels, EOS Trans.
AGU, 82(20), Spring Meet. Suppl., Abstract OS41A-12, S227,
2001.
deMenocal,
P.B., J. Adkins, Ortiz,
J.D., T. Guilderson, Millennial-Scale Sea-Surface
Temperature Variability During The Last Interglacial and its
Abrupt Termination, EOS 81(48), F675, American Geophysical
Union, Fall Meeting Supplement, 2000.
Wolf-Gladrow,
D.A., Zeebe, R.E., Sanyal, A., and Ortiz, J.D., A
theoretical study of the kinetics of the boric acid,- borate
equilibrium in seawater, EOS 81(48), F620, American
Geophysical Union, Fall Meeting Supplement, 2000.
Passow,
M., Ortiz, J.D.,
Witter, D., Small, C., Visbeck, M., Lerner-Lam, A., Lotti
Bone, R., Anderson, O.R., Sambrotto, R., Armbruster, J., and
Griffin, K., Earth2Class: What research scientists can share
with classroom teachers (Extended Abstract), in Abstract
Volume, Tenth Symposium on Education, American Meterological
Society Annual Meeting, Albuquerque, NM, 2001.
Ortiz,
J.D.,
O’Connell, S., van Geen A and Melville ’99 Shipboard
Scientific Party, Deep sea sediments off Baja California
reflect Greenland ice core climate cycles, Summit 2000 GSA
Annual meeting Abstracts with Programs (Reno, NV) Geological
Society of America, P-101, 2000.
O’Connell,
S. and J.D. Ortiz,
Hot times in the city: Urban heat island exercise for students
studying climate change, Summit 2000 GSA Annual meeting
Abstracts with Programs (Reno, NV) Geological Society of
America, 2000.
Farmer,
C, Kaplan, A., deMenocal, P.B., and J.D. Ortiz, Towards a
joint faunal-isotopic transfer function for reconstructing
past changes in tropical upper-ocean thermal structure. Eos, 80(46), F531,
American Geophysical Union, Fall Meeting Supplement, 1999.
Adkins,
J., deMenocal, P.B., and J.D. Ortiz, Rapid
variability in eolian accumulation rate and sediment focusing
off North Africa (ODP Site 658). Eos, 80(46), F531,
American Geophysical Union, Fall Meeting Supplement, 1999.
Passow,
M., Witter, D., Ortiz,
J.D., Newton, R., Lotti Bond, R., and M. Visbeck,
(Extended Abstract) What can classroom teachers learn from
research scientists? A Maury Project experience. Ninth
Symposium on Education, American Meterological Society Annual
Meeting, 1999.
O'Connell,
S., Ortiz, J.D.,
Ranganathan, J., and J. McManus, Generating a grayscale
time-series record from Ocean Drilling Program cores for
classroom use, GSA 1999 Annual meeting Abstracts with Programs
(Denver, CO) Geological Society of America, 1999.
O'Connell,
S., Venherm, C., Raymo, M.E., Ganley, K. and J.D. Ortiz, Mid-Pleistocene
sediment dynamics and paleoceanography at Feni Drift, ODP Site
980, Eos, 80(17),
S169, American Geophysical Union, Spring Meeting Supplement,
1999.
Ortiz,
J.D., Mix,
A.C., Wheeler, P,A. and R.M. Key, An estimate of the
anthropogenic offset of oceanic 13CDIC
based on the ventilation of the California Current at 42oN,
IUGG99 Abstract Volume, Birmingham, UK, International Union of
Geodesy and Geophysics, A181, 1999.
Ortiz,
J.D.,
Application of non-invasive sedimentological methods to
sediments from western pacific marginal basins, in Conference
on Marine Environments: Past Present and Future Symposium Vol.
(Jan., 26-28, 1999, Kaohsiung, Taiwan, R.O.C), 1999.
deMenocal,
P.B., Ortiz, J.D.,
and M. Sarnthein, Holocene variations in subtropical Atlantic
sea-surface temperatures: links to the North Atlantic, PAGES
Conference, London, 1998.
Jansen,
E., Fronval, T., Kleiven, H., Channell, J.E., Ortiz, J.D.,
Solheim, A., T. Dokken, A continuous Record of Northner
Hemisphere Glaciation from ODP Leg 162, Eos, 78(46), F353,
American Geophysical Union, Fall Meeting Supplement, 1997.
Lynch-Stieglitz,
J., Ortiz, J.D.,
and D.H. Sandweiss, The global fingerprint of early Holocene
climate, Eos, 78(46),
F375, American Geophysical Union, Fall Meeting Supplement,
1997.
Ranganathan,
Jai V., O'Connell, S. Ortiz,
J.D., and J. McManus, An improved grayscale analysis
method for estimating calcium carbonate content in deep-sea
cores, GSA 1997 Annual meeting, Abstracts with Programs -
Geological Society of America, 29(6), Meeting: Oct. 20-23,
1997, Salt Lake City, UT, 1997.
Ortiz,
J.D., and
A.C. Mix, Environmental control of oxygen and carbon
isotopicdisequilibria in asymbiotic planktic foraminifera, Eos, 77(46), F334,
American Geophysical Union, Fall Meeting Supplement, 1996.
Kohfeld,
K.E., Ortiz, J.D.,
and R.F. Anderson, Temperature-dependent carbon isotope
disequilibrium explains low 13C of polar
planktonic foraminifera across the Antarctic Polar Front, Eos, 77(17), S160,
American Geophysical Union, Spring Meeting Supplement, 1996.
Harris,
S.E., Mix, A.C., Ortiz,
J.D., and D.C. Lund, Terrigenous and biogenic
marinesediment variability: A new high-resolution view from
reflectance spectroscopy. 30th International Geological
Congress, (Beijing, China, 4-14 August, 1996), Abstract Vol.
2, p.217, 1996.
Doose,
H., Ortiz, J.D,
Prahl, F.G., Suess, E., UK'37 temperature record in the
California current system; a comparison of the modern and the
last glacial maximum, Terra Abstracts. Vol. 7, Abst. Suppl.
1., p. 220. Oxford : Blackwell Scientific Publications, 1995.
Ortiz,
J.D., Mix,
A.C., and S. Hostetler, Comparison of planktic Foraminiferal
faunas from mid-latitude sediment traps with core top and Last
Glacial Maximum faunas, Eos
75(44) 392, Fall Meeting Supplement, 1994.
Ortiz,
J.D., Mix,
A.C., and R.W. Collier, Planktic foraminifers and plankton
biomass in the California Current at 42oN,
September 1990, 73(23),
310, American Geophysical Union, Fall Meeting
Supplement, 1992.
Ortiz,
J.D., Mix,
A.C., and R.W. Collier, Planktic foraminifers in MOCNESS tows
from the California Current during September, 1990, in ICP IV
Abstract Volume, Sarnthein, M., Thiede, J. and Zahn, R.
(Eds.), GEOMAR Report 15, Kiel, 1992.
Ortiz,
J.D., and
A.C. Mix, The spatial distribution and seasonal succession of
modern Foraminifera in the California Current off Oregon, Eos 71(43), 1352,
American Geophysical Union, Fall Meeting Supplement, 1990.
Ortiz,
J.D., and A.C.
Mix, The spatial and temporal distribution of foraminiferal
assemblages in the California Current off Oregon: Response to
upwelling and seasonal forcing, in Evolution of upwelling
systems since the early Miocene (Abstract volume), Summerhays,
C.P., Prell, W., and Emeis. K.C., (Eds), London, 1990.