PI/DATA CONTACT = Jeffrey M. Welker DATA COVERAGE = START: July 1997; STOP: July 2000 LOCATION = Adjacent to the Greenland Ice Sheet near Thule, Greenland (76°N, 68°W) and adjacent to the Twin Glacier on Ellesmere Island near Alexandra Fiord, Nunavut, Canada (78°N, 75°W) DATA VERSION = 1.0, 11 March 2002, Preliminary REMARKS = Data are space delimited ASCII and are mean values of the raw data. Columns are SITE (Alexandra Fiord or Thule), YEAR (number of years that the site has been free of the overlying glacier), RESPIRATION (g/m2/d), StdErr-R (1 standard error of the mean respiration data), MicroBio (microbial biomass C - mg/g dry soil), and StdErr-M (1 standard error of the mean microbial biomass data). REMARKS = For more information regarding this data set, see the forthcoming article in EOS entitled "Previously ice entombed high arctic ecosystems have active microbes that are releasing CO2" by JM Welker, JT Fahnestock, GHR Henry, KW O'Dea, and RE Piper. Site Year Respiration StdErr-R MicroBio StdErr-M g/m2/d1 mg/g_dry_soil Alex 1 0.20 0.03 0.49 0.03 Thule 1 0.50 0.07 0.23 0.02 Alex 1 0.25 0.03 0.30 0.03 Alex 10 0.28 0.07 0.27 0.04 Alex 20 0.27 0.04 0.30 0.04 Alex 40 2.00 0.03 0.80 0.03 Thule 40 0.50 0.04 0.75 0.04 Thule 400 2.50 0.04 0.60 0.04 Alex 5000 3.50 0.08 0.50 0.03