1. U.S. Surface Archives Sent to China (1997-2000) 7 th PRC-U.S. Joint Coordination Panel for Data and Information Cooperation 29 Nov. – 1 Dec, 2000 Steven Worley National Center for Atmospheric Research

2. Cooperative data exchange –SOA/NMDIS/CNODC, China –NCDC and NCAR, U.S. Agreement signed, April-May, 1998 Obligations –CNODC, digitize U.S. Marine Meteorological Collection, 1879- 1893 –NCAR, send a global land surface data, 1967-March 1997

3. Chronology of Events –Early 1997 datasets were identified Mr. Joe Elms, NCDC Mr. Guo Fengyi, NMDIS/CNODC –June 1997, a test tape was sent to China – successful –December 1997, sent all 1967- March 1997 data to China 70 Gigabytes on 17 magnetic tapes A few problems with Chinese importation customs Same as data used for NCEP/NCAR Global Atmospheric Reanalysis V.1

5. Other data sent to China –Supplemental land surface data April 1997 – 1998 –COADS, 1950-1997, newest version, sent January 2000 U.S. has provided our very best global surface data, land and ocean, to China

6. Candidate datasets for future exchanges –From US New edition of COADS, 1784-1949 –In data processing stages now New COADS analyzed products, for full period of record –In the development stages now Global Atmospheric Reanalyses –NCEP Version I, 1948-2000 –NCEP Version II, New, 1979-2000, approx. 105 Gigabytes for standard atmospheric levels and surface flux fields. –More about our holdings Various NOAA sites NCAR Data Support Section http://dss.ucar.edu/

8. –Possible data from China 1949-1956 Upper Air sounding –Significant improvement for Reanalyses computations Marine surface observations NOT already in COADS –Existing digital archives –Other digitization projects Ocean profile stations NOT already included in the World Ocean Database (Levitus et al.) Fix buoy data NOT already in the global collections Based on yesterday’s presentation, much of this information is coming to NODC. We can access the data through NODC