noaa-ocean-2606 Arabian Sea Cores Foraminiferal Oxygen Isotope Data Staubwasser, M.; Sirocko, F.; Grootes, P.M.; Segl, M. Arabian Sea Cores Foraminiferal Oxygen Isotope Data 2003-07-01 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/2606 Investigator M. Staubwasser Investigator F. Sirocko Investigator P.M. Grootes Investigator M. Segl earth science paleoclimate paleoceanography depth,null,null,centimeter,null,paleoceanography,corrected,null,N,null earth science paleoclimate paleoceanography age,null,null,calendar year before present,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 18O,Globigerinoides ruber,null,per mil PDB,null,paleoceanography,averaged,null,N,210-year average earth science paleoclimate paleoceanography depth,null,null,centimeter,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 18O,Globigerinoides ruber,null,per mil PDB,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography number of samples,null,null,count,null,paleoceanography,null,null,N,Number of specimans earth science paleoclimate paleocean oxygen isotopes earth science paleoclimate paleocean other earth science paleoclimate paleocean physical properties earth science paleoclimate paleocean age control geoscientificInformation 10962 14C yr BP -40 14C yr BP 12900 cal yr BP 0 cal yr BP Complete 24.62 24.62 65.98 65.98 -316 -316 Ocean Indian Ocean 63KA>LATITUDE 24.62>LONGITUDE 65.98 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

325 Broadway, E/NE31

Boulder CO 80305-3328 USA online ASCII Staubwasser, M., F. Sirocko, P.M. Grootes, and M. Segl. 2003. Climate change at the 4.2 ka BP termination of the Indus valley civilization and Holocene south Asian monsoon variability. Geophysical Research Letters 30:1425.

Planktonic oxygen isotope ratios off the Indus delta reveal climate changes with a multi-centennial pacing during the last 6 ka, with the most prominent change recorded at 4.2 ka BP. Opposing isotopic trends across the northern Arabian Sea surface at that time indicate a reduction in Indus river discharge and suggest that later cycles also reflect variations in total annual rainfall over south Asia. The 4.2 ka event is coherent with the termination of urban Harappan civilization in the Indus valley. Thus, drought may have initiated southeastward habitat tracking within the Harappan cultural domain. The late Holocene drought cycles following the 4.2 ka BP event vary between 200 and 800 years and are coherent with the evolution of cosmogenic 14C production rates. This suggests that solar variability is one fundamental cause behind Holocene rainfall changes over south Asia.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/63ka-tab.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/staubwasser2003 USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11