"Location: Atqasuk, Alaska (AK,USA)" "Latitude: 70¡ 28' 10.6"" N" "Longitude: 157¡ 24' 32.2"" W" Climate: Tundra UTC Offset: -9 File Format: Tab delimited text Missing Value: -99.99 Principal Investigator: Walter Oechel San Diego State University Biology Department 5500 Campanile Drive "San Diego , CA USA 92182-4614" Phone Number: 619-594-6613 619-594-6613 Email: oechel@sunstroke.sdsu.edu Data Contact: Joe Verfaillie San Diego State University Biology Department 5500 Campanile Drive "San Diego , CA USA 92182-4614" Phone Number: 619-594-6613 619-594-6613 Email: josephv@sunstroke.sdsu.edu Symbol Description Instrument Unit YY Year JD Julian Day TM Time Rn Net Radiation Q-7 (REBS) W m-2 LE Latent Heat Flux ATDD/NOAA Open-Path IRGA W m-2 H Sensible Heat Flux Sonic Anemometer (Gill inc) W m-2 G_1 Soil Heat Flux HFT-3 (REBS) W m-2 G_2 Soil Heat Flux HFT-3 (REBS) W m-2 PAR Photosynthetically Active Radiation LI-190SB (LI-COR) mE m-2 s-1 Air T Air Temperature at HMP 35C (Vaisala) oC Soil T1_0 Soil temperature at 0 cm Type-T Thermocouple oC Soil T1_5 Soil temperature at Đ5 cm Type-T Thermocouple oC SoilT1_10 Soil temperature at Đ10cm Type-T Thermocouple oC Soil T2_0 Soil temperature at 0 cm Type-T Thermocouple oC Soil T2_5 Soil temperature at Đ5 cm Type-T Thermocouple oC SoilT2_10 Soil temperature at Đ10cm Type-T Thermocouple oC RH Relative Humidity HMP 35C (Vaisala) % Rain Precipitation TE525 (Texas Electronics) mm WD Wind Direction Sonic Anemometer (Gill Inc.) Degree WS Wind Speed Sonic Anemometer (Gill Inc.) m s-1 u* Friction Velocity Sonic Anemometer (Gill Inc.) m s-1 FCO2 CO2 Flux ATDD/NOAA Open-Path IRGA mg m-2 s-1 FH2O H2O Flux ATDD/NOAA Open-Path IRGA mg m-2 s-1