======================== Originally posted 2008-8-20 ============================ North Pole Environmental Observatory Pacific Marine Environmental Drifting Buoys NSF Grants OPP-9910305 and 0352754 NPEO 2007-2008 Weather and Radiation Buoys deployed by PMEL 22206 (PMEL Weather station) Filename = NPEO2007_wx22206.txt Deployed 25 April 2007 at 89.0240N 7.1030W Last transmission 2 December 2006 at 71.0600 17.7910W 20726 (PMEL Kipp&Zonen radiometers) Filename = NPEO2007_20726_kzrad.txt Deployed 25 April 2007 Last transmission 31 July 2007 These data were recorded by the ARGOS drifters deployed at the North Pole Environmental Observatory by PMEL (Pacific Marine Environmental Laboratory) in 2005. Two CRREL snow/ice balance buoys. Data from those buoys will be archived separately. One weather station buoy and one radiometer buoy were deployed in 2005. Positions are ARGOS recorded for the weather buoy only. AirT1 was in a thermistor shield. AirT2 was ventilated. The wind-sensor was a black RM Young Arctic model; however, if winds are reported as 0 for more than a few records we assume the rotor was frozen. Wu is Eastward wind component. Wv is Northward wind component. Wdir is wind direction From in degrees True, obtaining magnetic declination from NOAA's Geomagnetism website at (http://www.ngdc.noaa.gov/seg/geomag/geomag.shtml). The set of radiometers consisted of a Kipp & Zonen CM22 pyranometer and CG4 pyrgeometer, both deployed adjacent to the weather station buoy on the same floe. The radiometers had heaters and a fan constantly blew air over the surface of the radiometers. The heaters and fans were powered by solar panels. This buoy took ten minute records all hour long, instead of just taking one record at the beginning of the hour. Tiltx and Tilty give the angle (in degrees from horizontal) of the plate supporting the radiometers. Radiation units are Watts/m^2. The buoys had to be deployed on ice only about 1.5 m thick; there was no thicker ice that we could reach in the time we had available. They tilted badly enough during the summer melt season that useful data transmission had ended by August 15. The drift track from the weather station buoy applies to each. The missing data flag in both files = '1.e35'. Parameters: Weather station buoy- Year, Day, Hour, Argos_Lat, Argos_Lon, AirT1, AirT2, Press, Wu, Wv, Wspd, Wdir Kipp&Zonen radiometer buoy- Day, Shortwave_every_10_min, Longwave_every_10_min, TiltX, TiltY, Temp, Battery voltage Profile plots and other analysis using these data may be viewed at the NPEO website (http://psc.apl.washington.edu/northpole/Buoys.html) and at the PMEL Arctic Theme page (http://www.arctic.noaa.gov/gallery_np.html) For further information concerning these data, please contact Dr. James E. Overland James.E.Overland@noaa.gov (206) 526-6795 Sigrid Salo sigrid.a.salo@noaa.gov (206) 526-6802 at Pacific Marine Environmental Laboratory (PMEL) NOAA R/PMEL, 7600 Sand Point Way N.E., Seattle, WA 98115-6349 For further information concerning NPEO, please contact Dr. James Morison morison@apl.washington.edu (206) 543-1394 Roger Andersen roger@apl.washington.edu (206) 543-1258 at Polar Science Center, Applied Physics Lab, University of Washington 1013 NE 40th, Seattle, WA 98105-6698 USA FAX (206) 616-3142