glcrchem_DP_2002 English utf8 dataset McMurdo Dry Valleys LTER http://mcmlter.org/ 2014-10-29 ISO 19115-2 Geographic Information - North American Profile Metadata - Data with Biological Extensions ISO 19115-2:2009(E) Geochemistry data of cryoconite holes collected from Canada, Commonwealth, Howard, Hughes and Taylor glaciers in Nov 2001 and Jan 2002 2014-10-29 publication Andrew Fountain Portland State University http://www.pdx.edu (503) 725-3386 P.O. Box 751 Portland OR 97207 US andrew@pdx.edu http://glaciers.pdx.edu/fountain/ pointOfContact documentDigital Geochemistry data of cryoconite holes collected from Canada, Commonwealth, Howard, Hughes and Taylor glaciers in Nov 2001 and Jan 2002 Name: Thomas Nylen Role: field crew Name: Dorota Porazinska Role: field crew Name: Inigo San Gil Role: data manager completed McMurdo Dry Valleys LTER http://mcmlter.org/ unknown Metadata completed in 2016 - San Gil inorganic nutrients theme LTER Core Areas English ground condition 2001-11-02 2002-01-31 Data contained in these files has been subjected to quality control standards imposed by the investigator. The user of this data should be aware that, while efforts have been taken to ensure that these data are of the highest quality, there is no guarantee of perfection for the data contained herein and the possibility of errors exists. If you encounter questionable data, please contact the MCM LTER data manager so that the data can be corrected or qualified. Thus, these data may be modified and future data will be appended. https://mcm.lternet.edu/sites/default/files/glcrchem_DP_2002.csv glcrchem_DP_2002 eng; US McMurdo Dry Valleys LTER glcrchem_DP_2002 Record Delimiter : \n Number of Header Lines : 1 Number of Footer Lines : 0 Orientation : Column Quote Character : "Field Delimiter : , false GLACIER NAME OF GLACIER WHERE MEASUREMENT IS MADE LOCATION SPECIFIC DETAILS ON THE SAMPLE LOCATION LATITUDE LOCATION OF SAMPLE ON GLACIER LONGITUDE LOCATION OF SAMPLE ON GLACIER COMMENTS DETAILS ABOUT SAMPLE DATE_TIME DATE Date Time Format: MM/DD/YYYY SAMPLE NAME SAMPLE NAME Br mg/L mass concentrations Br uM micromolar concentration Ca (mg/L) mass concentrations Ca (microM) micromolar concentration Cl (mg/L) mass concentrations Cl (microM) micromolar concentration F (mg/L) mass concentrations F (microM) micromolar concentration K (mg/L) mass concentrations K (microM) micromolar concentration Li mg/L mass concentrations Li (microM) micromolar concentration Mg (mg/L) mass concentrations Mg (microM) micromolar concentration Na (mg/L) mass concentrations Na (microM) micromolar concentration NO3 (mg/L) mass concentrations NO3 (microM) micromolar concentration SO4 (mg/L) mass concentrations SO4 (microM) micromolar concentration PH sample pH FILE NAME RAW DATA FILE CONTAINING INFORMATION DBF https://mcm.lternet.edu/sites/default/files/glcrchem_DP_2002.csv dataset Five glaciers (Taylor, Howard, Hughes, Commonwealth and Canada) were sampled for cryoconite hole invertebrates over a period of three weeks in November 2001 by Thomas Nylen, Nichole Alhadeff, and Dorota Porazinska. Exact sampling dates are described in the data file. All cryoconite holes at sampling time were entirely frozen. Each glacier (except Taylor) was sampled at four locations namely four corners of the glacier (Lower West, Lower East, Upper West, and Upper East). Upper and Lower description relates to topographical orientation of the glacier and East and West to geographical orientation. The Howard glacier was also sampled at the location described as Middle East. Because geographical and topographical orientation of the Taylor glacier overlap, samples were taken in a transect starting from the most West and Upper stake 90 and ending at stake 92 at the glacier's terminus. GPS coordinates were measured at each sampling location. Typically, 6 cryoconite holes at each location were drilled with a Sipre ice corer until the sediment would show up in the drilling dust accumulating on the ice surface. Each cryoconite hole was measured for diameter (N-S and E-W directions) and depth (from the ice surface to bottom of the sediment layer). Drilling was done by Thomas Nylen. At each location, two largest, two median, and two small cryoholes were sampled. All necessary equipment for drilling was pulled on banana sleds. Excavated ice cores (ony 20cm from the bottom of the sediment up) were placed in Nalgene plastic bags, carried in back packs to Lake Hoare camp, transported to McMurdo Cray Laboratory, and kept frozen till extraction. Metadata Access Constraints: none Metadata Use Constraints: none annually McMurdo Dry Valleys LTER http://mcmlter.org/ pointOfContact