North Pole Environmental Observatory 2008 Pacific Marine Environmental Lab (PMEL/NOAA) NSF Grants OPP-9910305, OPP-0352754, and ARC-0856330 NPEO 2008-2009 Weather and Radiation Buoys deployed by PMEL 07100 (PMEL Weather station) Filename = NPEO2008_wx07100.txt Deployed 7 April 2008 at 88.4510N 16.8510E Last transmission 13 November 2008 from 79.3180N 1.0170E 22204 (PMEL Kipp&Zonen radiometers) Filename = NPEO2008_22204_eprad.txt Deployed 20 April 2008 at 88.3700N 4.1100E Last transmission 31 July 2007 from 79.6100N 1.3000E These data were recorded by the ARGOS drifters deployed at the North Pole Environmental Observatory by PMEL (Pacific Marine Environmental Laboratory) in 2008. One weather station buoy and one radiometer buoy were deployed at the Russian Ice Station Barneo during NPEO 2008. Positions are from ARGOS. 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. WindU is Eastward wind component. WindV is Northward wind component. WindD is wind direction From in degrees True. FloeD is the magnetic heading pointed toward by the right-hand side of the weather station. It was used with a table of declination downloaded from NOAA's Geomagnetism website at (http://www.ngdc.noaa.gov/seg/geomag/geomag.shtml) and reported here as MagDec to correct Wind Direction to Degrees True. However, the magnetic field is weak and spatially variable in much of the Arctic, and we recognize that this affects the quality of the direction measurement. TiltX and TiltX give the angle (in degrees from vertical) of the aerovane mast. The set of radiometers consisted of Eppley PSP and PIR Radiometers, 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. However, since these were powered by solar panels, the heaters and fan ceased operation when the sunlight dropped of about October 5. This buoy recorded one ten-minute 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 missing data flag in both files = '1.e35'. Parameters: Weather station buoy- Year, Day, Hour, Argos_Lat, Argos_Lon, AirT1, AirT2, Press, WindU, WindV, WindSpd, WindDir, FloeDir, MagDec, Tilts Eppley radiometer buoy- Year, Day, Hour, Argos_Lat, Argos_Lon, PSP, PIR, IRDomeT, IRCaseT, Tilts, Battery voltages 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