Julian P. Sachs


 

http://faculty.washington.edu/jsachs/JPS_1-28-06.jpgProfessor of Chemical Oceanography
School of Oceanography
University of Washington

Ocean Sciences Building, Room 521
Box 355351
Seattle, WA 98195-5351

phone: (206) 221-5630

e-mail: jsachs@uw.edu

Package Delivery:
Marine Sciences Bldg
1501 NE Boat Street, Room G
Seattle, WA 98195

http://faculty.washington.edu/jsachs/lab/www/Research/Clipperton_2008/Scientist_Sleeping_Quarters.jpg*** Sachs Lab Website ***http://faculty.washington.edu/jsachs/lab/www/Research/RMI_Expedition_2009/Lib_Arrival_carry_boat_090721_0D33534.jpg       

Publications & Data

Expeditions & Field Trips

http://faculty.washington.edu/jsachs/Classes/image012.jpgClasses Taught

Positions Available

Julian's Personal Homepage

     




On this page: Education | Employment | Awards & Honors | Research Interests*Publications & Data*  | Presentations | Grants | Students & Postdocs | Professional SocietiesCollaborators |


Education

  • Ph.D., Chemical Oceanography, Massachusetts Institute of Technology-Woods Hole Oceanographic Institution Joint Program in Oceanography, 1997.
    • Thesis with Dr. Daniel Repeta, "Nitrogen Isotope  Ratios in Chlorophyll and the Origin of Eastern Mediterranean Sapropels."
  • B.S., Earth, Atmospheric and Planetary Sciences with a Minor in Literature, Massachusetts Institute of Technology, 1991.
    • Thesis with Dr. Edward A. Boyle, "The Geochemistry of Rhenium." [pdf]



Employment



Awards & Honors

  • 2002-2008 Comer Science and Education Foundation Awardee
  • 2001-2004 Henry L. and Grace Doherty Professorship in Ocean Utilization
  • 2002 National Academy of Sciences, Frontiers of Science Symposium, Invited Speaker
  • 2001 National Academy of Sciences, Frontiers of Science Symposium, Invited Participant
  • 2001 Jeptha H. and Emily V. Wade Award for Research, Massachusetts Institute of Technology
  • 1995-1996 Woods Hole Oceanographic Institution Ocean Ventures Fund Award
  • 1991-1994 Office of Naval Research Graduate Fellowship
  • 1991 Goodyear Award for Writing
  • 1991 Undergraduate representative, Committee to Appoint a Dean of Science



Research Interests

Paleoclimatology. Organic Geochemistry. Tropical climate of the last 2,000 years. Late Quaternary climate. Development and application of organic geochemical and stable isotopic techniques in paleoclimatology and oceanography.



Publications & Data




Funded Grants


  • NSF-OCE-1241247, "Dimensions: Collaborative Research: Do Parallel Patterns Arise from Parallel Processes?" J.P. Sachs (co-PI with M. Dawson, M. Beman, Univ. CA-Merced), 1/1/13-12/31/17.
  • UW Royalty Research Fund A74247, “Developing a Quantitative Technique for Reconstructing Past Rainfall in the Tropics,” J.P. Sachs, 11/1/12-10/31/13.
  • NSF-OCE-1027079, “Evaluating the Environmental Influences on D/H Fractionation in Algal Lipids,” J.P. Sachs, 10/1/10-9/30/14.
  • NSF-AGS-1043207, “Pacific Islands Climate Change Education Partnership,” J.P. Sachs (subcontractor), 10/1/2010-9/30/2012.
  • NSF-EAR-0823503, "Late Holocene ITCZ Shifts from Lipids on Tropical Pacific Islands," J.P. Sachs, 10/1/08-9/30/13.
  • NOAA-NA08OAR4310685, "Tropical Pacific Climate Variability During the Last Millennium from Sediments, Corals & Mollusks," J.P. Sachs, 9/1/08-8/31/11.
  • NSF-ATM-0811382, "Holocene SST & ENSO Reconstructions from Peruvian Mollusks," J.P. Sachs, 7/1/08-6/30/09.
  • NSF-EAR-0745982, "Evaluating the Influence of Salinity on Lipid D/H Fractionation in Saline Lakes," J.P. Sachs, 10/1/08-9/30/11.
  • American Chemical Society - Petroleum Research Fund 46937-AC2, "A Paleosalinity Proxy from Lipid D/H Ratios," J.P. Sachs, 9/1/07-8/31/09.
  • National Geographic Society 8129-06, "Coring the Sediments of Clipperton Atoll Lagoon for Climate Reconstruction," J.P. Sachs, 5/1/07-4/30/08.
  • NSF-ESH-0639640, "Continuous Holocene Climate Records from Equatorial Pacific Islands," J.P. Sachs, 6/15/06-6/14/09.
  • NSF-OCE-0624954, "Collaborative Research: Changes in Ocean Circulation, Productivity & Carbon Cycle during Heinrich Events," J.P. Sachs 2/1/06-1/31/08. (With R. Anderson, LDEO.)
  • Comer Science & Education Foundation, "Hydrologic changes in the tropical Pacific during the Holocene," J.P. Sachs, 2/1/06-1/31/08.
  • MIT Earth System Exploration Fund, "A Molecular Isotopic Approach to Reconstructing El Niño," J.P. Sachs, 7/1/05-1/15/06.
  • NOAA-NA06OAR4310122, "Extreme Cooling of the US-Canadian Eastern Seaboard During the Holocene," J.P. Sachs, 2/1/05-1/31/08.
  • MIT-France Program, "On the importance of the Earth's tilt in the climate system", J.P. Sachs, 6/30/03-6/29/04.
  • Comer Science & Education Foundation "Abrupt climate change from alkenone paleotemperatures in southern mid-latitude sediments," J.P. Sachs, 9/1/02-1/31/06.
  • NOAA, "Late Holocene Shelf-Slope Dynamics and Climate," J.P. Sachs, 6/1/02-5/30/04.
  • Henry L. and Grace Doherty Career Development Professorship in Ocean Utilization, "Determining Abrupt Climate Change Mechanisms: High-Resolution Paleothermometry in Southern Ocean Sediments" J.P. Sachs, 10/30/02-9/29/04.
  • NSF-OCE-0116940, "Collaborative Research: Slope Water Dynamics and Climate on Millennial to Centennial Time Scales". J.P. Sachs, 10/1/01-9/30/04. (In collaboration with L. Keigwin, WHOI.)
  • MIT Wade Fund, "In Search of Abrupt Climate Change Mechanisms from Paleothermometry in Recent Ocean Sediments," J.P. Sachs, 6/1/01-5/31/02.
  • NSF-OCE-0196019, "Synchronizing Ice and Sediment Records with Leaf Wax Abundances," J.P. Sachs, 10/1/00-9/30/01.



Synergistic Activities

  • 3 lectures on climate change impacts and remediation to the Government and citizens of the Republic of the Marshall Islands (Micronesia), September 2008.
  • Led US Congressional Delegation (House Science & Technology Committee) to Galapagos, June 2008.
  • Instructor for Climate Quest Summer Camp for high school students at the University of Washington, July 14-19, 2008.
  • Associate Editor, Geochemistry, Geophysics, Geosystems, July 2008 - .
  • Science Judge, Washington State Ocean Sciences Bowl (Orca Bowl) for high school students, 2007 & 2008.
  • Proposal Review Panel, NSF-OCE-Marine Geology & Geophysics, May 2007.
  • Proposal Review Panel, DFG (German National Science Foundation), Bonn, Germany, April 2-3, 2007.
  • Editorial Board Member for Saline Systems, January 2007 - December 2009.
  • Session Co-organizer, "Beyond the Instrumental Record of Climate Change," Fall AGU Meeting, San Francisco, CA,  Dec. 11-15, 2006.
  • Initiated meteorological monitoring & rain water sampling program for school children in the Galapagos, Sept. 2004-present.
  • NSF Workshop on Proxies, invited participant, San Francisco, CA, December, 2005.
  • Planning Workshop invited participant, NSF ESH-MESH, Washington, DC, Nov. 2005.
  • Proposal Review Panel, NSF-OCE-Marine Geology & Geophysics, May 2005.
  • Conference Organizer, "The Expression of Heinrich Events in the Southern Hemisphere," Gif-sur-Yvette, France, May 3-4, 2004.
  • Speaker and Participant in the 13th and 14th Annual Frontiers of Science Symposia at the National Academy of Sciences. Irvine, California, November, 2001 and 2002.
  • Judge-Siemens Westinghouse High School Science Competition, Northeast Regional Finals, MIT: 2000, 2001, 2002, 2003, 2004.
  • Public outreach talks: Palau International Coral Reef Center, Koror, Palau, June 23, 2004.  Boston Public Library, October 24, 2001.
  • Contributor to articles on climate for non-experts, Barnard Magazine (Spring, 2000), MIT Spectrum (Spring, 2001).
  • Rapporteur, NSF Sponsored Workshop on Alkenone-Based Paleoceanographic Indicators, Woods Hole, MA, October 3-6, 1999.



Students & Postdocs

  • Dr. Julie Richey (NOAA Climate and Global Change Postdoctoral Fellow, 2010-2012)
  • Dr. Avery Cook Shinneman (Postdoctoral Fellow, 2009-2011)
  • Dr. Ines Mügler (Humboldt Postdoctoral Fellow, 2009-2011)
  • Dr. Juzhi Hou (PCC Postdoctoral Fellow, 2009-2010)
  • Dr. Matthieu Carre (JISAO Postdoctoral Fellow, 2006-2008)
  • Dr. Valerie Schwab (Swiss NSF Postdoctoral Fellow, 2006-2007)
  • Dr. Dirk Sachse (Humboldt Postdoctoral Fellow, 2005-2007)
  • Dr. Katharina Pahnke (Comer Postdoctoral Fellow, 2004-2005)
  • Dr. Rienk Smittenberg (Comer Postdoctoral Fellow, 2003-2007)
  • Dr. Zhaohui Zhang (Comer Postdoctoral Fellow, 2003-2005)
  • Dr. Athanasios Koutavas (NOAA Postdoctoral Fellow, 2003-2005)
  • Dr. Denise Backstrom (Wallenberg Postdoctoral Fellow, 2001-2003)
  • Tessa McGee (Graduate Student, 2013- )
  • Marta Wolfshorndl (Graduate Student, 2013- )
  • Ashley Maloney (Graduate Student, 2010- )
  • Sarah Nemiah Ladd (Graduate Student, 2009- )
  • Alyssa Atwood (Graduate Student, 2007- )
  • Daniel Nelson (Graduate Student, PhD'13)
  • Monica Byrne (Graduate Student, 2003-2005, MS'05)
  • Jessie Kneeland (Graduate Student, 2004-2005)
  • Casey Saenger (Graduate Student, 2004-2005)
  • Amy Englebrecht (Graduate Student, 2001-2004, MS'04)
  • Undergraduate Researchers: Elise Baldwin (2013-present), Samantha Hing (2013-present), Ryan D'Jay (2012-2013), June Landenberger (2012-present), Christopher Paschall (2012-2013), Ariel Townsend (2011-2013), Johnny Huynh (2011-2013), Thien-Y Le (2011-2012), Jake Zaragoza (JISAO Summer Intern from Gonzaga University, 2011), Tory Johnson (2010-2012), Jane Lee (2011), Kyle Thomas (JISAO Summer Intern from Texas Southern University, 2010), Conor Myhrvold (Princeton, 2009-2011), Frances Janny (2009-2010), James Sadler (UW / Univ. of Southampton Undergraduate, 2009-2010), Eric Battisti (UW Undergraduate, 2007-2008), Carie Frantz (UW Undergraduate, 2006-2007), Jeffrey Bowman (UW Undergraduate, 2006-2008), Brittany Demianew (UW Undergraduate, 2006-2007), Jen Nomura (UW Undergraduate, 2006), Evan Howard (UW Undergraduate, 2006), Brittany Kimball (UW Undergraduate, 2006-2008), Daniel Luksic (UW Undergraduate, 2006), Cong Luo (MIT Undergraduate, 2005), Deborah Dryer (MIT Undergraduate, 2002-2003), Vivian Leung (MIT Undergraduate, 2003), Corrina Chase (Undergraduate Thesis, 2001-2002), Katherine Ricke (Undergraduate Thesis, 2003-2004; UROP, 2001-2002), Maria Schriver (MIT Undergraduate, 2002)
  • High School Researchers: David Golub (2011-2012), Nathan Kato (2010-2011), Eric Battisti (2006), Alex Rawji (2004)
  • Visiting Graduate Students: Anne-Sophie Kremeur (Univ. of Paris), 2002)



Professional Societies



Recent Extramural Collaborators

  • Mark Bush (Florida Institute of Technology)
  • Edouard Bard (Collège de France)
  • Simon Haberle (Australian National University)
  • Marco Coolen (Woods Hole Oceanographic Institution)
  • Robert Anderson (Lamont-Doherty Earth Observatory)
  • Lloyd Keigwin (Woods Hole Oceanographic Institution)
  • Carl Wunsch (Massachusetts Institute of Technology)
  • Jonathan Overpeck (University of Arizona)
  • Paul Colinvaux (Marine Biological Laboratory)
  • Miriam Steinitz-Kannan (Northern Kentucky University)
  • Coral Reef Research Foundation, Palau
  • Charles Darwin Research Station, Galapagos



Oral Presentations

1. INVITED Sachs, J.P., S.N. Ladd, J. Richey, A. Maloney (2012). “H Isotopes in Mangrove & Algal Lipids Indicate Little Ice Age Aridity in Palau.” Ocean University of China, Qingdao, China, April 28, 2013. 2. INVITED KEYNOTE Sachs, J.P. (2013). “Controls on the Hydrogen Isotope Composition of Phytoplankton.” Biomarkers and isotopes in sedimentary organic matter to understand past climate and ecosystems: an Australian perspective, Center for Coastal Biogeochemistry, ANSTO, Sydney, NSW, Australia, Feb. 4, 2013. 3. INVITED Sachs, J.P. (2012). “Reconstructing Climate from H & C Isotopes in Lipids from Algae and Mangroves.” Center for Coastal Biogeochemistry, Southern Cross University, Lismore, NSW, Australia, Sept. 17, 2012. 4. INVITED Sachs, J.P. and S.N. Ladd (2012). “Past, Present & Future Climate in the Tropical Pacific.” Yap Ministry of Agriculture, Yap, Federated States of Micronesia, August 9, 2012. 5. INVITED Sachs, J.P. (2012). “Little Ice Age Climate of the Tropical Pacific.” Nanjing University, Nanjing, China, April 23, 2012. 6. INVITED Sachs, J.P. (2012). “Measurement and Interpretation of Hydrogen Isotopes in Lipid Biomarkers.” Ocean University of China, Qingdao, China, April 18, 2012. 7. INVITED Sachs, J.P. (2012). “Little Ice Age Climate of the Tropical Pacific.” Ocean University of China, Qingdao, China, April 19, 2012. 8. INVITED Sachs, J.P. (2012). “Late Holocene Climate of the Tropical Pacific from Lipid D/H Ratios.” Max-Planck-Institute for Biogeochemistry, Jena, Germany, March 13, 2012. 9. INVITED Sachs, J.P. (2012). “Measurement and Interpretation of Hydrogen Isotopes in Lipid Biomarkers.” Max-Planck-Institute for Biogeochemistry, Jena, Germany, March 12, 2012. 10. INVITED Sachs, J.P. (2012). “Late Holocene Climate of the Tropical Pacific from Lipid D/H Ratios.” University of Potsdam, Potsdam, Germany, March 9, 2012. 11. INVITED Sachs, J.P. (2012). “Measurement and Interpretation of Hydrogen Isotopes in Lipid Biomarkers.” University of Potsdam, Potsdam, Germany, March 8, 2012. 12. INVITED Sachs, J.P., M. Carre, S. Tudhope, I. Mügler, J. Lough, J. Richey (2011). "Little Ice Age Climate in the Tropical Pacific from Sediment, Mollusks and Coral." 2011 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 5-9, 2011. 13. INVITED Sachs, J.P. (2011). “Little Ice Age (1400-1800 A.D.) Climate of the Tropical Pacific.” Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, November 16, 2011. 14. INVITED Sachs, J.P., M. Carre, S. Tudhope, I.Mügler, J. Lough, J. Richey (2011). “Tropical Pacific climate during the Little Ice Age.” Holocene Paleoclimate In The Hawaiian Islands And Its Large-Scale Context. Kilauea Military Camp, Big Island, Hawai‘i, November 7-8, 2011. 15. Sachs, J.P. and A. Sussman (2011). “Climate impacts and education in the US-Affiliated Pacific Islands.” Pacific Education Conference, College of Micronesia, Pohnpei, FSM, July 19-21, 2011. 16. INVITED KEYNOTE SPEAKER Sachs, J.P. (2010). “Environmental influences on D/H Fractionation in Algal Lipids.” Australian Organic Geochemistry Conference, National Museum, Canberra, Australia, December 7-10, 2010. 17. INVITED Sachs, J.P., M. Carre, S. Tudhope, J. Lough, D. Sachse, Z. Zhang, R. Smittenberg (2010). "Tropical Pacific Climate During the Last Millennium." INTERDYNAMIK Workshop, Atlantic Hotel, University of Bremen, Bremen, Germany, February 29, 2010. 18. INVITED Sachs, J.P., D. Sachse, R. Smittenberg, Z. Zhang, C. Saenger, A. Atwood, D. Nelson, N. Ladd, O. Kawka, (2010). “Large Natural Changes in Tropical Pacific Rainfall Prior to the 20th Century.” University of Washington Climate Impacts Group Seminar, Seattle, WA, March 9, 2010. 19. INVITED Sachs, J.P., Z. Zhang, R. Smittenberg, D. Sachse, V. Schwab, A. Marchetti, O. Kawka, D. Nelson, A. Cash, J. Bowman, B. Demianew (2010). “Influences on Hydrogen Isotope Ratios in Algal Lipids.” Conference on Terrestrial Archives of Past Climate and Biodiversity Change, The Australian National University, Canberra, Australia, February 2-6, 2010. 20. INVITED Sachs, J.P., V. Schwab, D. Sachse, A. Atwood, D. Nelson, Z. Zhang, O. Kawka, R. Smittenberg (2010). “Tropical Pacific Rainfall Changes During the Last Millennium.” Conference on Terrestrial Archives of Past Climate and Biodiversity Change, The Australian National University, Canberra, Australia, February 2-6, 2010. 21. INVITED Sachs, J.P., D. Sachse, Z. Zhang, R. Smittenberg, M. Carre, I. Mügler, D. Nelson, A. Atwood, N. Ladd (2009). "ITCZ Shifts During the Last Millennium from Lipids on Tropical Pacific Islands." 2009 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 14-18, 2009. 22. INVITED Sachs, J.P., D. Sachse, Z. Zhang, R. Smittenberg (2009). “Tropical Pacific Hydrologic Changes during the late Holocene from Lipid D/H Ratios on Remote Islands.” ISOCOMPOUND: Advances in Analyses and Applications of Compound-Specific Stable Isotopes in Ecology, Ecosystem- and Earth Sciences. Potsdam, Germany, June 1-5, 2009. 23. INVITED Sachs, J.P. (2009). “Tropical Hydrologic Changes During the Last Millennium.” Atmospheric Sciences Colloquium, University of Washington, Seattle, WA, April 3, 2009. Sachs, J.P., M. Stege, T. Keju (2009). "Recent Movements of the ITCZ in the Tropical Pacific and Ramifications for the Marshall Islands." International Climate Change Congress, Copenhagen, Denmark, March 10, 2009.
- INVITED
Sachs, J.P. (2009). "Pacific ITCZ Shifts During the Last Millennium Inferred from Lipid D/H Ratios." INTERDYNAMIK Workshop, Atlantic Hotel, University of Bremen, Bremen, Germany, February 24, 2009.
- INVITED
Sachs, J.P. (2008). "Pacific Rainfall Changes During the Last Millennium from Microbes, Molecules & Isotopes in Tropical Island Sediments." College of Marine Science Seminar, University of South Florida, St. Petersburg, FL, Nov. 25, 2008.
INVITED Sachs, J.P. (2008). "Tropical Pacific Climate Variations During the Last Millennium." Department of Earth and Ocean Sciences Seminar, University of British Columbia, Vancouver, British Columbia, Canada, Nov. 20, 2008.
-INVITED Sachs, J.P. (2008). "Environmental Controls on D/H Fractionation During Lipid Synthesis in Algae." Department of Earth and Ocean Sciences Colloquium, University of British Columbia, Vancouver, British Columbia, Canada, Nov. 20, 2008.
- INVITED Sachs, J.P. (2008). "Tropical Pacific Climate During the Last Millennium." Environmental Science & Engineering Seminar Series, California Institute of Technology, Pasadena, CA, Nov. 5, 2008.
- INVITED Sachs, J.P. (2008). "Surface Ocean Synthesis, Pt. 2: Alkenone SST Records, 22-10 ka." SynTrace21,000 Workshop, University of Wisconsin, Madison, WI, August 11-13, 2008.
- INVITED Sachs, J.P. (2008). "Environmental Controls on Molecular D/H and their Application to Tropical Rainfall Reconstrcutions During the Last Millennium." Organic Geochemistry Gordon Conference, Holderness School, Holderness, NH, August 3-8, 2008.
- INVITED 
Sachs, J.P., D. Sachse, Z. Zhang, R. Smittenberg (2007). "Tropical Pacific Hydrologic Changes During the Last 1,000 Years from Lipid D/H Ratios in Lake & Ocean Sediments."2007 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 9-14, 2007.
- Sachs, J.P., D. Sachse, Z. Zhang, R. Smittenberg (2007). "The Influence of Salinity, Growth Rate & Temperature on D/H Fractionation in Algal Lipids from Culture and Field Studies."2007 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 9-14, 2007.
  • INVITED Sachs, J.P., V. Schwab, D. Sachse, A. Cash, D. Nelson, Z. Zhang, O. Kawka (2007). "Late Holocene Hydrologic Changes in the Tropical Pacific from Lipid D/H Ratios." 234th Fall National Meeting of the American Chemical Society, Boston, MA, August 19-23, 2007.
  • INVITED Sachs, J.P. (2006). "D/H Ratios in Lipid Biomarkers Record Tropical Pacific Climate Variations Since the Last Glacial Period." 2006 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 11-15, 2006.
  • Sachs, J.P., Z. Zhang, R. Smittenberg, C. Saenger, D. Sachse (2006). “Holocene Hydrologic Changes in the Tropical Pacific.”  2006 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 11-15, 2006.
  • Sachs, J.P. (2006). "Severe Cooling of the NW Atlantic Linked to Gulf Stream Retreat During the Last 10,000 Years." Second International Conference on Global Warming and the Next Ice Age, Santa Fe, NM, July 17-21, 2006.
  • INVITED Sachs, J.P. (2006). “Tropical Pacific Hydrologic Variations Since the Last Ice Age.”  Atmospheric Sciences Colloquium, University of Washington, Seattle, WA, April 28, 2006.
  • Sachs, J.P., Z. Zhang, R. Smittenberg, C. Saenger, K. Pahnke, A. Koutavas (2005).  “Holocene ENSO Reconstructions from Molecular Rain Gauges.”  2005 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 5-9, 2005.
  • INVITED  Sachs, J.P. (2005). “Reconstructing ENSO from Hydrogen Isotopes in Lipids.” The Comer Abrupt Climate Change Fellowship Roundtable, Palisades Executive Conference Center, Palisades, NY, October 19-22, 2005.
  • INVITED  Sachs, J.P. (2005). “Severe Cooling of the Northwest Atlantic During the Last 10,000 Years.” GordonConference on Chemical Oceanography, Tilton School, Tilton, NH, August 9-12, 2005.
  • INVITED  Sachs, J.P. (2005). “Holocene Cooling of the Slope Waters East of the US & Canada.” Paleoclimate Lunch Seminar, Woods Hole Oceanographic Institution, Woods Hole, MA, May 26, 2005.
  • Sachs, J.P. and L.D. Keigwin (2005). “Severe Cooling of the Northwest Atlantic Ocean During the Holocene.”  2005 Meeting of the European Geophysical Union, Vienna, Austria, April 25-29, 2005.
  • INVITED  Sachs, J.P. (2005). “Reconstructing El Niño from Molecular Rain Gauges.” ClimaTea Seminar Series, Harvard University, Cambridge, MA, April 19, 2005.
  • INVITED  Sachs, J.P. (2005). “Cooling of the Eastern Seaboard During the Last 10,000 Years.”  MIT Oceanography and Climate Sack Lunch Seminar, Massachusetts Institute of Technology, March 9, 2005
  • INVITED  Sachs, J.P. (2005). “Reconstructing El Niño from Molecular & Isotopic Rain Gauges.”  Terrascope Lunch Seminar, Massachusetts Institute of Technology, March 8, 2005.
  • Sachs, J.P. and L.D. Keigwin (2004). “Extreme Cooling of Slopewaters East of the USA and Canada During the Holocene.”  2004 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 13-17, 2004.
  • INVITED  Sachs, J.P. (2004). “Extreme Cooling of NW Atlantic Slopewaters During the Last 10,000 Years.”  Chemical Oceanography Seminar, University of Washington, Seattle, WA, December 10, 2004.
  • INVITED  Sachs, J.P. (2004). “Holocene Cooling of NW Atlantic Slopewaters & the Start of the Next Ice Age.”  Earth System History Seminar Series, Brown University, Providence, RI, December 6, 2004.
  • INVITED  Sachs, J.P. (2004). “The Ice Age is Coming: Cooling of NW Atlantic Slopewaters During the Last 10,000 Years.”  ClimaTea Seminar Series, Harvard University, Cambridge, MA, November 23, 2004.
  • INVITED  Sachs, J.P. (2004).  “On the importance of Earth’s Tilt in the Climate System.” Meeting of the MIT-France Advisory Board, Massachusetts Institute of Technology, October 29, 2004.
  • INVITED  Sachs, J.P. (2004). “A Southern Hemisphere Perspective on Heinrich Events.” 6th Summer Institute, NOAA Postdoctoral Program in Climate and Global Change, Steamboat Springs, Colorado, July 18-22, 2004.
  • INVITED  Sachs, J.P. (2004). “Climate History from Palau’s Marine Lakes.” Palau International Coral Reef Center, Koror, Palau, Micronesia, June 24, 2004.
  • INVITED  Sachs, J.P. (2004). “Expression of Heinrich Events in the Southern Ocean.” Program on Climate Change, University of Washington, Seattle, WA, May 17, 2004.
  • INVITED  Sachs, J.P. (2004). “Expression of Heinrich Events in the Southern Ocean.” Paleoclimate Lunch Seminar, Woods Hole Oceanographic Institution, Woods Hole, MA, April 15, 2004.
  • Sachs, J.P. and R.F. Anderson, K. Pahnke, R. Zahn (2003). "The Expression of Heinrich Events in the Southern Hemisphere."   2003 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 8-12, 2003.
  • INVITED   Sachs, J.P. (2003). "Impact on the Southern Ocean of Iceberg Floods in the North Atlantic." Environmental Science Seminar Series, University of New Hampshire, Durham, NH, December 4, 2003.
  • INVITED   Sachs, J.P. (2003). "Can Icebergs in the North Atlantic Cause Algae to Grow in the Subantarctic Ocean?" Department of Marine Science Seminar Series, University of Southern Mississippi, Stennis Space Center, MS, November 21, 2003.
  • INVITED   Sachs, J.P. (2003). "Southern Ocean Impact of Iceberg Discharges (Heinrich Events) in the North Atlantic." Earth System History Seminar Series, Brown University, Providence, RI, October 20, 2003.
  • INVITED   Sachs, J.P. (2003). "The expression of Heinrich Events in the Southern Ocean." European Research Conference on "Achieving Climate Predictability Using Paleoclimate Data", San Feliu de Guixols, Spain, October 11-16, 2003.
  • INVITED   Sachs, J.P. (2003). "Ocean Surface Temperatures During the Last 150,000 Years."   Course on Climate Variability Studies in the Ocean "Tracing and Modelling the Ocean Variability" , International Center for Theoretical Physics, Trieste, Italy, June 16, 2003.
  • INVITED   Sachs, J.P. (2003). "Glacial Surface Temperatures & the Expression of Heinrich Events in Southern Mid-Latitudes." Earth Science Symposium, Laboratoire de Science et Climate de Environment and CNRS, Gif-sur-Yvette, France June 11, 2003.
  • INVITED   Sachs, J.P. (2003). "Glacial Surface Temperatures & the Expression of Heinrich Events in Southern Mid-Latitudes." Environmental Science Symposium, Weizmann Institute of Science, Rehovot, Israel, June 8, 2003.
  • INVITED   Sachs, J.P. (2003).   "The (unexpected) temperature history of southern mid-latitudes during the last glacial period."   MIT Atmospheric Science Symposium, MIT, Cambridge, MA, April, 24, 2003.
  • INVITED   Sachs, J.P. (2002). "The Record of Abrupt Climate Change in Ocean Sediments." 2002 National Academy of Sciences-Beckman Frontiers of Science Symposium, National Academy of Science, Irvine, CA, November 14-16, 2002.
  • INVITED   Sachs, J.P. (2002). "Alkenone Paleotemperatures in Southern Mid-Latitudes." 2002 NOAA/CORC ARCHES Annual Workshop, Lamont-Doherty Earth Observatory, Palisades, NY, November 6-8, 2002.
  • INVITED KEYNOTE ADDRESS Sachs, J.P. and R.F. Anderson (2002). "Surface Temperatures from Alkenones in Late Quaternary Marine Sediments." Goldschmidt Conference, Davos, Switzerland, August 18-23, 2002.
  • Sachs, J.P., R.F. Anderson, S.J. Lehman (2001). "Sea Surface Temperatures of the Southeast Atlantic During the Last 70,000 Years." 2001 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 10-14, 2000.
  • INVITED Sachs, J.P. (2001). "South Atlantic Surface Temperatures During the Last Glacial Period." 2001 NOAA/CORC ARCHES Annual Workshop, Lamont-Doherty Earth Observatory, Palisades, NY, November 26-28, 2001.
  • INVITED Sachs, J.P. (2001). "Reconciling Sapropel Deposition with Oligotrophy in the Eastern Mediterranean Sea." Geological Society of America Annual Meeting, Boston, MA, November 6, 2001.
  • INVITED Sachs, J.P. (2001). "A Geologic Perspective on Global Warming." Global Warming Program, Boston Public Library-Allston Branch, October 24, 2001.
  • Sachs, J.P. (2001). "Abrupt Climate Change: Lessons from the Past." ERL Annual Industry Consortium Meeting, MIT, Cambridge, MA, May 14, 2001.
  • Sachs, J.P. (2001). "Abrupt Climate Change: Lessons from the Past." 2001 Earth, Atmospheric, and Planetary Sciences Lecture Series, MIT Independent Activities Period, January 26, 2001.
  • Sachs, J.P. (2000). "Alkenone-Derived Surface Temperatures from the N and S Atlantic During the Late Quaternary." Wallace Broecker Seminar Series, Lamont-Doherty Earth Observatory, Palisades, NY, February 11, 2000.
  • Sachs, J.P. (2000). "Atlantic Ocean Surface Temperatures During the Late Quaternary." Department of Earth, Atmospheric and Planetary Sciences Lecture Series, Massachusetts Institute of Technology, Cambridge, MA, February 4, 2000.
  • INVITED Sachs, J.P. (1999). "SSTs from Alkenone Unsaturation Ratios in Marine Sediments." NOAA Rapid Climate Change Panel, Lamont-Doherty Earth Observatory, Palisades, NY, October 16, 1999.
  • Sachs, J.P. (1999). "Abrupt Biomarker-Derived Temperature Fluctuations in the Subtropical North Atlantic 60,000-30,000 Years Ago." Geological Sciences Colloquium, University of Colorado at Boulder, April 14, 1999.
  • Chemical Oceanography Seminar Series, Woods Hole Oceanographic Institution, Woods Hole, MA, April 13, 1999.
  • Guest Colloquium, University of Pennsylvania, Philadelphia, PA, April 8, 1999.
  • Sachs, J.P. (1999). "Chlorophyll, Nitrogen Isotopes, and Strange Events in the Mediterranean Sea." Guest Colloquium, Barnard College, New York, NY, March 8, 1999.
  • Sachs, J.P. (1999). "Abrupt Sea Surface Temperature Fluctuations in the Subtropical Northwest Atlantic 60,000 to 30,000 Years Ago."
  • Guest Colloquium, Lamont-Doherty Earth Observatory at Columbia University, Palisades, NY, March 9, 1999.
  • Sachs, J.P. and S.J. Lehman (1998). "Large Century-to-Millennial Scale Sea Surface Temperature Fluctuations in the Subtropical NW Atlantic During Marine Isotope Stage 3." 1998 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 6-10, 1998.
  • Sachs, J.P. (1998). "Abrupt Sea Surface Temperature Fluctuations in the Subtropical Northwest Atlantic 25,000 to 65,000 Years Ago."
  • Guest Colloquium, Brown University, Providence, RI, December 4, 1998.
  • Sachs, J.P. (1998). "Nitrogen Isotopes in Chlorophyll and the Origin of Eastern Mediterranean Sapropels." Guest Colloquium, Brown University, Providence, RI, December 3, 1998.
  • Sachs, J.P. and S.J. Lehman (1998). "A New Late Pleistocene SST Record With 50-100 Year Resolution for the Subtropical North Atlantic." 1998 Spring Meeting of the American Geophysical Union, Boston, MA, May 26-29, 1998.
  • Sachs, J.P. and D.J. Repeta (1997). "Nitrogen Isotopic Measurements of Chlorophyll Suggest Eastern Mediterranean Sapropels Result from Enhanced Preservation of Organic Matter." European Union of Geosciences 9, Strasbourg, France, March 23-27, 1997.
  • Sachs, J.P. and D.J. Repeta (1996). "Nitrogen Isotopic Measurements of Chlorophyll Suggest Eastern Mediterranean Sapropels Result from Enhanced Preservation of Organic Matter." 1996 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 15-19, 1996.
  • Sachs, J.P., D.J. Repeta, A. Hilkert (1995). "Measurement and Assessment of the Carbon and Nitrogen Isotopic Composition of Chlorophyll Derivatives." 17th International Meeting on Organic Geochemistry, Donostia-San Sebastian, Spain, September 4-8, 1995.

  • Oral Presentations by Co-Authors (Not Updated)

    • Smittenberg, R., V. Schwab, J.P. Sachs (2007).  “Purification of Sterols and Alkenones for Compound Specific Hydrogen Isotopic Analysis using HPLC.”  2007 Goldschmidt Conference, Cologne, Germany, August 19-24, 2007
    • Sachse, D., G. Gleixner, J. Radke, J.P. Sachs (2007). "Prospects of hydrogen isotope measurements on lipid biomarkers for paleoclimate applications." 234th Fall National Meeting of the American Chemical Society, Boston, MA, August 19-23, 2007.
    • Sachse, D., J.P. Sachs, S. Golubic (2007). "A major shift in Tropical Climate during the Little Ice Age." 3rd Meeting of the Gary Comer Abrupt Climate Change Fellowship, Palisades, NY, U.S.A., May 2007.
    • Pahnke, K., J.P. Sachs, L. Keigwin (2005).  “Glacial to Holocene Hydrological Changes in the Tropical East Pacific From D/H Ratios in Alkenones.”  2005 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 5-9, 2005.
    • Pahnke, K. and J.P. Sachs (2005) “Southern Hemisphere Sea Surface Temperatures 0-160 kyrs B.P.: High Versus low/mid Latitude Climate Change.”  EAPS seminar, Massachusetts Institute of Technology, January 2005.
    • Koutavas, A., J. Lynch-Stieglitz, J.P. Sachs, T.M. Marchitto (2003).  “Response of the Equatorial Pacific Upwelling to Past Shifts in the Position of the ITCZ.” 2003 Spring Meeting of the American Geophysical Union, Nice, France, April, 2003.
    • Keigwin, L.D., J.P. Sachs, Y. Rosenthal (2001). "A 1600-Year History of the Labrador Current off Nova Scotia." 2001 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 10-14, 2001.
    • Koutavas, A., J. Lynch-Stieglitz, J.P. Sachs (2000). "Oxygen-Isotope and Alkenone Constraints on Glacial Cooling of the Eastern Equatorial Pacific." 2000 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 15-19, 2000.
    • Keigwin, L.D., J.P. Sachs, Y. Rosenthal (2001). "A 1600-Year History of the Labrador Current off Nova Scotia."GSA, Geological Society of America Annual Meeting, Boston, MA, November 6, 2001.


    Poster Presentations (Not Updated)

    • Sachs, J.P. (2008) "Divergent Trends in Holocene SSTs Derived from Alkenones and Mg/Ca in the Equatorial Pacific." 2008 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 15-19, 2008.
    • Englebrecht, A.C., J.P. Sachs, A.P. McNichol (2001). "Developing a 14C-Dating Method for Opalline Sediments." 2001 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 10-14, 2001.
    • Koutavas, A., J. Lynch-Stieglitz, J.P. Sachs, T.M. Marchitto (2001). "30,000-Year Record of Climate from the Galapagos Islands and Links with High Latitudes." 2001 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 10-14, 2001.
    • Sachs, J.P., S.J. Lehman, R.F. Anderson (2000). "Alkenone Paleotemperatures in the SE Atlantic During the Last 41 kyr." 2000 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 15-19, 2000.
    • Smith, L.M., A.E. Jennings, J.P. Sachs, D.M. Anderson, J.T. Andrews, M. Hald (1999). "Anomalously low 13C Events During Deglaciation of the East Greenland Continental Shelf Adjacent to the Denmark Strait (68?N)." 1999 Fall Meeting of the American Geophysical Union, San Francisco, CA, December 15-19, 1999.
    • Sachs, J.P., D.J. Repeta, A. Hilkert (1995). "Measurement and Assessment of the Nitrogen Isotopic Composition of Chlorophyll Derivatives." 5th International Conference on Paleoceanography, Halifax, Nova Scotia, Canada, October 10-14, 1995.
    • Sachs, J.P. and S.J. Lehman (1998). "A New Late Pleistocene SST Record With 50-100 Year Resolution for the Subtropical North Atlantic." 6th International Conference on Paleoceanography, Lisbon, Portugal, August 23-28, 1998.



    Last updated: 17Dec2013 / jsachs@uw.edu

    email: jsachs@uw.edu