Andrew G. Fountain 2014-10-29 tabular digitial data McMurdo Dry Valleys LTER McMurdo Dry Valleys LTER 10.6073/pasta/590165ae07d7d4dabfe2300f7473ac01 https://mcm.lternet.edu/content/isotope-ratios-ice-and-snow-taylor-valley As a part of the McMurdo Dry Valleys LTER program, isotope ratios have been determined from 295 ice/snow samples in Taylor Valley, Antarctica. Hydrogen/deuterium isotope ratios are given for all samples, and for a subset, there are oxygen isotope ratios, and a deuterium-excess. Values are reported relative to VSMOW, +/- 1.0 per mil for hydrogen, and +/- 0.1 for oxygen. 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. 1993-01-01 1997-12-31 ground condition Data from this table was submitted to Denise Steigerwald (MCM LTER data manager) by Bruce Vaughn on a floppy disk. The file was in ascii text, tab delimited format, and can be found in the data manager's home directory on INSTAAR's Unix system. Once submitted, the data manager used Microsoft Excel and Access to fine-tune the file and get it in more of a relational mode. Changes made include the following:* The 'YR/ID' field was renamed to 'sample#', and had the year portion removed. Information for sample year is represented in the date field.* The 'Type' field was renamed to 'sample type', and written out as "snowpit" rather the abbreviation "P".Once the above changes were made, the file was exported into comma delimited ascii format and MS-DOS text format for presentation on the web page. The resulting files (snptistp.dat and snptistp.txt) contain a link to this page.Metadata was completed in 2016 As needed The Canada Glacier a small glacier flowing south-east into the northern side of Taylor Valley.  The glacier receives less than 10 cm of snowfall annually. Its seasonal melting feeds Lake Hoare to the west and Lake Fryxell to the east. 163.057708740234 162.894287109375 -77.598403930664 -77.632133483887 The Commonwealth glacier flows in a southeasterly direction and enters the northern side of Taylor Valley immediately west of Mount Coleman. Named by the British Antarctic Expedition for the Commonwealth of Australia in the early 1900s.   163.373565673828 163.197784423828 -77.545059204102 -77.589111328125 286m 286m meter The Suess Glacier is between the Canada Glacier and Lacroix Glacier, flowing south into Taylor Valley. Scott named after the early nineties British Antarctic Expedition for Professor Eduard Suess. 162.744598388672 162.647781372070 -77.633750915527 -77.651824951172 1 000m 1 000m meter The Taylor Glacier is an Antarctic glacier about 54 kilometres (34 mi) long, flowing from the plateau of Victoria Land into the western end of Taylor Valley, north of the Kukri Hills, south of the Asgard Range. The middle part of the glacier is bounded on the south by Beacon Valley.Scott (early nineties British Antarctic expedition) named the glacier for Griffith Taylor, geologist and leader of the Western Journey Party of the British Antarctic expedition.Like other glaciers in the McMurdo Dry Valleys, Taylor Glacier is “cold-based,” meaning its bottom is frozen to the ground below.   162.280426025391 161.683044433594 -77.721229553223 -77.769035339355 Hughes Glacier is a small alpine glacier flowing toward Lake Bonney in Taylor Valley from the Kukri Hills on the south. Named for Professor McKenny Hughes. 162.581527709961 162.437667846680 -77.727073669434 -77.749969482422 Howard is a small alpine glacier just west of Crescent Glacier, flowing into Taylor Valley on the north from the Kukri Hills. Geologist T.L. Pewe studied and named it for Arthur D. Howard, 163.147994995117 163.036087036133 -77.662025451660 -77.687744140625 717m 717m meter [term:vocabulary] None <cntorg>McMurdo Dry Valleys LTER</cntorg> <onlink>http://mcmlter.org/</onlink> <span property="dc:title" content="McMurdo Dry Valleys LTER" class="rdf-meta element-hidden"></span> Name: Denise Steigerwald Role: data manager Name: Inigo San Gil Role: data manager Not Applicable Not Applicable Field and/or Lab Methods The samples were obtained in 3 field seasons: 1993-94, 1994-95, and 1996-97. The samples were analyzed by Bruce Vaughn at the Stable Isotope Lab at INSTAAR (Institute of Arctic and Alpine Research), University of Colorado. For the samples obtained during the 1993-94 year, a duplicate set was analyzed by Tyler Coplen at the US Geological Survey, in Reston, Virginia. For the analysis of hydrogen isotopes, the uranium reduction method was used at INSTAAR, and the platinum-catalyst equilibration method was used at the USGS. For oxygen isotopes, the standard CO2/H2O equilibration method was used at both labs. There was agreement between the analyses done at the two labs. The samples were obtained in 3 field seasons: 1993-94, 1994-95, and 1996-97. The samples were analyzed by Bruce Vaughn at the Stable Isotope Lab at INSTAAR (Institute of Arctic and Alpine Research), University of Colorado. For the samples obtained during the 1993-94 year, a duplicate set was analyzed by Tyler Coplen at the US Geological Survey, in Reston, Virginia. For the analysis of hydrogen isotopes, the uranium reduction method was used at INSTAAR, and the platinum-catalyst equilibration method was used at the USGS. For oxygen isotopes, the standard CO2/H2O equilibration method was used at both labs. There was agreement between the analyses done at the two labs. unknown istp GLACIER Name of glacier The data provider Name of glacier SAMPLE# SAMPLE Number The data provider SAMPLE Number DATE_TIME DATE AND TIME SAMPLES WERE COLLECTED IN THE FIELD The data provider calendar date/time MM/DD/YYYY gregorian calendar SAMPLE_TYPE AREA WHERE SAMPLE WAS GATHERED (ICE, FRESH SNOW, SNOWPIT,STREAM WATERS) The data provider AREA WHERE SAMPLE WAS GATHERED (ICE, FRESH SNOW, SNOWPIT,STREAM WATERS) STAKE# STAKE NUMBER The data provider STAKE NUMBER LAYER SNOWPIT LAYER The data provider SNOWPIT LAYER BOTTOM DEPTH / RANGE OF SAMPLE (CM) RANGE OF SNOWPIT LAYER The data provider centimeter Location Comments Comments about the sampling location The data provider Comments about the sampling location LATITUDE ANGULAR DISTANCE SOUTH OF EQUATOR The data provider -90 0 degree LONGITUDE ANGULAR DISTANCE EAST OF GREENWICH MERIDIAN The data provider 0 360 degree 0.000001 UTM easting (m) Easting coordinates The data provider meter UTM northing (m) Northing coordinates The data provider meter ELEVATION (m) ELEVATION OF SAMPLE SITE The data provider meter DEUTERIUM ISOTOPE RATIO DEUTERIUM ISOTOPE PER MIL, RELATIVE TO VSMOW The data provider PERMIL OXYGEN ISOTOPE RATIO OXYGEN ISOTOPE PER MIL, RELATIVE TO VSMOW The data provider PERMIL DEUTERIUM EXCESS DEUTERIUM ISOTOPE RATIO MINUS 8 TIMES RELATIVE TO OXYGEN ISOTOPE RATIO VSMOW The data provider PERMIL FILE NAME NAME OF FILE ORIGINALLY SUBMITTED The data provider NAME OF FILE ORIGINALLY SUBMITTED McMurdo Dry Valleys LTER The data distributor shall not be liable for innacuracies in the content http 1 0 \n 1 column , https://mcm.lternet.edu/sites/default/files/istp.csv None 2014-10-29 2014-10-29 McMurdo Dry Valleys LTER http://mcmlter.org/ Biological Data Profile of the Content Standards for Digital Geospatial Metadata devised by the Federal Geographic Data Committee. Drupal Ecological information Management Systems, version D7, Biological Data Profile module