IABP Drifting Buoy Pressure, Temperature, Position, and Interpolated Ice VelocityEntry ID: G00791
Abstract: The International Arctic Buoy Programme (IABP) maintains a network of drifting buoys to provide meteorological and oceanographic data for real-time operational requirements and research purposes including support to the World Climate Research Programme (WCRP) and the World Weather Watch (WWW) Programme. An average of 25 buoys are in service at any time. The IABP drifting buoy data products ... described here are 12-hour interpolated pressure, temperature, position, and ice velocity grids available by year from 1979 through the present. Drifting buoys measure atmospheric pressure, air temperature, and other geophysical quantities. These data are processed at the University of Washington's Polar Science Center, and are interpolated to produce gridded fields. Data are usually updated by May of each year, and are available online from the Polar Science Center. NSIDC catalogs the data set and provides this documentation with links to the Polar Science Center's IABP site
in order to publicize and facilitate access to the data. Several related data sets are available from the Polar Science Center's IABP site, including a CD-ROM containing IABP data and derived products from 1979 through 1999, an ocean buoy data set with temperature and salinity from drifting buoys from 1985 through 1994, GIF files graphically depicting gridded products, and a surface air temperature (SAT) data set (the IABP/POLES SAT data set) that combines data from buoys, manned drifting stations, and meteorological land stations.
Data Set Citation
Dataset Originator/Creator: Roger Colony and Ignatius Rigor
Dataset Title: IABP Drifting Buoy Pressure, Temperature, Position, and Interpolated Ice Velocity
Dataset Release Place: Boulder, CO U.S.A.
Dataset Publisher: National Snow and Ice Data Center (NSIDC)Online Resource: http://www.nsidc.org/data/g00791.html
Start Date: 1979-01-19
Quality Atmospheric pressure is typically measured using barometers with errors of < 1 mb. Air temperature is measured using a variety of instruments. The thermistors typically have measurement errors of < 0.1oC, but where these instruments are installed on the buoys necessitates some care in interpreting the data. Prior to 1991, most measurements were taken from thermistors placed inside the hull of air ... dropped buoys, and were used primarily to calibrate the barometers. These buoys were sometimes covered with snow during winter, and were often warmed from insulation during summer. In 1992, the IABP began deploying buoys which measured true air temperatures from shielded thermistors at 2 meters height. For a detailed discussion of the temperature measurements from buoys, see Rigor et al. 2000. Most buoys are positioned by the Argos systems on NOAA polar orbiting satellites. The Argos system results in positions with a measurement error of < 300 m. Global Position Systems have been installed on many of the newer buoys, and can be positioned with errors of < 100 m.
Distribution Media: FTP, CD-ROM
Distribution Size: File sizes range from 45 KB to 3.4 MB compressed.
Distribution Format: ASCII text, downloadable in gunzip (.gz) format
Email: igr at apl.washington.edu
University of Washington Polar Science Center Applied Physics Laboratory 1013 NE 40th Street
Province or State: WA
Postal Code: 98105
Email: acsys at npolar.no
ACSYS Program Office PO BOX 5072 Majorstua
City: Middelthunsgt 29
Province or State: Oslo
Postal Code: N-0301
Role: TECHNICAL CONTACT
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at nsidc.org
National Snow and Ice Data Center CIRES, 449 UCB University of Colorado
Province or State: CO
Postal Code: 80309-0449
Brown, W. P. and E. G. Kerut. 1978. Air droppable RAMS (ADRAMS) buoys. AIDJEX Bulletin. 40:21-29. Gandin, L. S. 1965. Objective analysis of meteorological fields. Gidrometeorologicheskoe Izdatel'stvo. Leningrad, translated from Russian. Israel program for scientific translations, Jerusalem. 242 pp. Julian, P. R. and H. J. Thiebaux. 1975. On some properties of correlation functions used in ... optimum interpolation schemes. Monthly Weather Review. 103:605-616. Martin, P. C. and M. Clarke. 1978. A test of barometric pressure and temperature measurements from ADRAMS buoys. AIDJEX Bulletin. 40:61-82. Paros, J. M. 1976. Digital pressure transducers. Measurements and Data. 56, 10(2). Rigor, I., R. Colony, and S. Martin. 2000. Variations in Surface Air Temperature Observations in the Arctic, 1979 - 1997. Journal of Climate. 13(5): 896-914. Thorndike, A. S. and J. Y. Cheung. 1977. AIDJEX measurements of sea ice motions 11 April 1975 to 14 May 1976. AIDJEX Bulletin. 3
5:1-149. Thorndike, A. S. and R. Colony. 1980. Arctic Ocean Buoy Program Data Report 19 January 1979 - 31 December 1979. Polar Science Center, University of Washington. Seattle, Washington. 131 pp. Thorndike, A. S. 1981. Kinematics of Sea Ice. The Geophysics of Sea Ice. Edited by N. Untersteiner. New York: Plenum Press. Thorndike, A. S., and R. Colony, 1982. Statistical properties of the atmospheric pressure field over the Arctic Ocean, Journal of the Atmospheric Sciences. 39, 2229-2238. Thorndike, A. S, 1986. Kinematics of sea ice. The Geophysics of Sea Ice. Edited by N. Untersteiner. New York: Plenum Press. 489-569.
Creation and Review Dates
DIF Creation Date: 2002-04-04
Last DIF Revision Date: 2010-12-30