uid=MCM,o=EDI,dc=edirepository,dc=org all public read Diana Wall

Johnson Hall 107 Fort Collins CO 80523 US

Diana.Wall@colostate.edu http://wp.natsci.colostate.edu/walllab/ https://orcid.org/0000-0002-9466-5235 McMurdo Dry Valleys LTER http://mcmlter.org/ Ross Virginia

Hinman Box 6182 Hanover NH 03755 US

(603) 646-0192 ross.a.virginia@dartmouth.edu http://sites.dartmouth.edu/ravirginia/ https://orcid.org/0000-0002-0890-0981 associated researcher Andy Parsons

Natural Resource Ecology Laboratory Fort Collins CO 80523 US

andy@nrel.colostate.edu field crew Denise Steigerwald data manager Inigo San Gil

Department of Biology, MSC03 2020 University of New Mexico Albuquerque NM 87131 US

(505) 277-2625 (505) 277-2541 isangil@lternet.edu data manager 2014-11-12 English

Investigation of the variation in soil biota and soil properties across the McMurdo Dry Valleys was part of the McMurdo Dry Valleys Long Term Ecological Research (LTER) project.  The moisture content of soil samples collected for organism extraction and identification was determined.    The study began in the austral summer of 1993/1994. Samples were taken on:      * December 31, 1993   * January 3, 8, 10 and 13, 1994,   * December 12 and 22, 1994,   * January 6 and 9, 1995,   * November 1, 8, 16 and 27, 1995,   * December 5 and 7, 1995, and   * January 12, 1998.   

soil soil moisture LTER Controlled Vocabulary Antarctica LTER soil soil moisture Station Keywords population dynamics LTER Core Areas

This data package is released under the Creative Commons Attribution 4.0 International License (CC BY 4.0; http://creativecommons.org/licenses/by/4.0/), which allows consumers (hereinafter referred to as “Data Users”) to freely reuse, redistribute, transform, or build on this work (even commercially) so long as appropriate credit is provided. Accordingly, Data Users are required to properly cite this data package in any publications or in the metadata of any derived products that result from its use (in whole or in part). A recommended citation is provided on the summary metadata page associated with this data package in the McMurdo Dry Valleys LTER Data Catalog (https://mcmlter.org/data), and a generic citation may be found on the summary metadata page in the repository where this data package was obtained. When these data contribute significantly to the contents of a publication, Data Users must also acknowledge that data were provided by the NSF-supported McMurdo Dry Valleys Long Term Ecological Research program (OPP-2224760). This data package has been released in the spirit of open scientific collaboration. Hence, Data Users are strongly encouraged to consider consultation, collaboration, and/or co-authorship (as appropriate) with the data package creator(s). Data Users should be aware these data may be actively used by others for ongoing research; thus, coordination may be necessary to prevent duplicate publication. Data Users should also recognize that misinterpretation of data may occur if they are used outside the context of the original study. Hence, Data Users are urged to contact the data package creator(s) if they have any questions regarding methodology or results. While substantial efforts are made to ensure the accuracy of this data package (with all its components), complete accuracy cannot be guaranteed. Periodic updates to this data package may occur, and it is the responsibility of Data Users to check for new versions. This data package is made available “as is” and comes with no warranty of accuracy or fitness for use. The creator(s) of this data package and the repository where these data were obtained shall not be liable for any damages resulting from misinterpretation, use, or misuse of these data. Finally, as a professional courtesy, we kindly request Data Users notify the primary contact referenced in the metadata when these data are used in the production of any derivative work or publication. Notification should include an explanation of how the data were used, along with a digital copy of the derived product(s). Thank you.

https://mcm.lternet.edu/content/soil-moistures-soil-biota-distribution-experiment Located in middle of Beacon Valley. Ceased ops in 2012ID: BENM 160.656900000000 160.656900000000 -77.828000000000 -77.828000000000 1176 1176 meter Moss Sample 130 @ Cape Crozier 169.200103759766 169.200103759766 -77.456802368164 -77.456802368164 The Cape Royds Pond 1 is an ice free pond in the Ross IslandCode : CR1Area: 1,792 Temperature: 6.3 celsius  166.163772583008 166.163772583008 -77.552818298340 -77.552818298340 Garwood Ice Cliff Meteorological Station, it was temporarily located in the Miers Valley,   164.131500000000 164.131500000000 -78.025900000000 -78.025900000000 51 51 meter The Labyrinth Pond 4 is located in the Wright Valley. Ice-covered, heavily shaded, lense-shaped.Code: LAB4Area: 25,805Temperature: 2.6 celsius  161.063613891602 161.063613891602 -77.560478210449 -77.560478210449 Lake Bonney is a saline lake with permanent ice cover at the western end of Taylor Valley in the McMurdo Dry Valleys of Victoria Land, Antarctica. It is 7 kilometres or 4.3 mi long and up to 900 metres or 3,000 ft wide. A narrow channel only 50 metres or 160 ft wide. Lake Bonney at Narrows separates the lake into East Lake Bonney 3.32 square kilometres or 1.28 sq mi and West Lake Bonney, 0.99 square kilometres or 0.38 sq mi. The west lobe is flanked by Taylor glacier. Valley: Taylor Distance to Sea : 25 Maximum Length (km): 4.8 Maximum Width (km): 0.9 Maximum Depth (m): 37 Surface Area (km^2): 3.32 Ice Thickness Average Surface (m): 3 - 4.5 Volume (m^3 * 10^6): 54.7 162.353210449219 162.536209106445 -77.697700500488 -77.724441528320 57 57 meter This channel connects the east and west lobes of Lake Bonney. Valley: Taylor Maximum Width (km): 0.05 Maximum Depth (m): 13 162.354003906250 162.354003906250 -77.715599060059 -77.715599060059 57 57 meter Lake Bonney is a saline lake with permanent ice cover at the western end of Taylor Valley in the McMurdo Dry Valleys of Victoria Land, Antarctica. It is 7 kilometres or 4.3 mi long and up to 900 metres or 3,000 ft wide. A narrow channel only 50 metres or 160 ft wide. Lake Bonney at Narrows separates the lake into East Lake Bonney 3.32 square kilometres or 1.28 sq mi and West Lake Bonney, 0.99 square kilometres or 0.38 sq mi. Valley: Taylor Distance to Sea : 28 Maximum Length (km): 2.6 Maximum Width (km): 0.9 Maximum Depth (m): 40 Surface Area (km^2): 0.99 Ice Thickness Average Surface (m): 2.8-4.5 Volume (m^3 * 10^6): 10.1 162.269104003906 162.354934692383 -77.714805603027 -77.727287292480 57 57 meter Lake Chad is in the Lake Hoare basin, Taylor Valley, west of Lake Hoare and east of the Suess Glacier. Wharton, House and McKay streams flow from the Suess Glacier directly into Lake Chad and then the overflow from Lake Chad flows into Lake Hoare. Valley: Taylor Distance to Sea : 24 Maximum Length (km): 1 Maximum Width (km): 0.2 Maximum Depth (m): 5.5 Surface Area (km^2): 0.15 Ice Thickness Average Surface (m): 3.5 - 4.5 162.745544433594 162.785705566406 -77.640029907227 -77.644386291504 The Lake Fryxell basin is formed by a moraine depression in a wider portion of the Taylor Valley. It has a number of moraine islands and shallower areas, as well as several relatively well developed deltas. The lake is fed by at least 10 meltwater streams with a total drainage catchment of 230 km2. The lake is dammed to the southwest by the Canada Glacier and is topographically closed. It is perennially ice covered; during summer months, an ice-free moat generally forms around much of the lake margin. Lake levels have risen ~2 m between 1971 and 1996. There are no surface outflows; the only known water loss is through ice ablation (evaporation, sublimation and physical scouring). Valley: Taylor Distance to Sea : 9 Maximum Length (km): 5.8 Maximum Width (km): 2.1 Maximum Depth (m): 20 Surface Area (km^2): 7.08 Ice Thickness Average Surface (m): 3.3 - 4.5 Volume (m^3 * 10^6): 25.2 163.048782348633 163.259582519531 -77.597076416016 -77.622711181641 18 18 meter Lake Hoare occupies a narrower portion of the Taylor Valley, dammed by the Canada Glacier. It would drain almost completely without this dam. There are a number of islands which may be related to an old terminal of Canada Glacier. The lake is fed primarily from direct runoff from the glacier, as well as meltwater streams. (Lake level rose ~1.5 m between 1972 and 1996). There are no surface outflows; the only known water loss is through ice ablation (evaporation, sublimation and physical scouring). Valley: Taylor Distance to Sea : 15 Maximum Length (km): 4.2 Maximum Width (km): 1 Maximum Depth (m): 34 Surface Area (km^2): 1.94 Ice Thickness Average Surface (m): 3.1 - 5.5 Volume (m^3 * 10^6): 17.5 162.784423828125 162.935836791992 -77.623085021973 -77.639259338379 73 73 meter Lake Vanda is located in the Wright Valley, adjacent to the Taylor Valley. It is fed primarily by the Onyx River, which has its origin at Lake Brownworth, and ultimately at the Lower Wright Glacier located ~27 km east of the lake. The lake has no outflow. Valley: Wright Distance to Sea : 47 Maximum Length (km): 8 Maximum Width (km): 2 Maximum Depth (m): 75 Surface Area (km^2): 5.2 Ice Thickness Average Surface (m): 2.8 - 4.2 Volume (m^3 * 10^6): 160 161.391906738281 161.691970825195 -77.518882751465 -77.542304992676 143 143 meter Lake Vida is a hypersaline lake in Victoria Valley, the northernmost of the large McMurdo Dry Valleys, on the continent of Antarctica. It is isolated under year-round ice cover, and is considerably more saline than seawater. Lake Vida is one of the largest lakes in the McMurdo Dry Valley region and is a closed-basin endorheic lake. The permanent surface ice on the lake is the thickest non-glacial ice on earth, reaching a depth of at least 21 metres or 69 ft. The ice at depth is saturated with brine that is seven times as saline as seawater. The high salinity allows the brine to remain liquid at an average yearly water temperature of 13 degrees Celsius or 9 farenheit. Hydrology: Lake Vida has at least three named inflows: Victoria River, Kite Stream, and Dune Creek. Victoria River passes through the Vida Basin into Victoria Valley, Victoria Land as ephemeral glacial meltwater from the Upper Victoria Glacier, draining from Victoria Upper Lake. Geology: In the vicinity of Lake Vida, a variety of geological features are noted, the most significant being glaciers, lakes, valleys, ridges, and summits. There are approximately 25 named glaciers within a 25 kilometres radius with the nearest being Upper Victoria Glacier, Packard Glacier, Clark Glacier, and Clio Glacier. Valley: Victoria 161.930999755859 161.930999755859 -77.388298034668 -77.388298034668 349 349 meter The Nussbaum Riegel Pond is in the Taylor Valley in between the Bonney and Chad Basins.  An Ice-covered, oval pond.Code: NRP Area: 6,133 Temperature: 3.1 celsius 162.814727783203 162.814727783203 -77.684379577637 -77.684379577637 1993-12-31 1998-12-31 in 2016, this dataset was packaged and completed to meet best practices for preservation (San Gil: Added geo-metadata, personnel.  Prepared in ISO, EML)    This file was created by Mark St. John at Colorado State University in Oct-1998, using raw data from the Excel workbooks '9312gsso.raw', '9412gsso.raw', '9511gsso.raw', and '9801gsso.raw'. The file format was suggested by the LTER data manager, to conform with the relational database structure. On 30-Oct-1998, the file was submitted to Denise Steigerwald, the MCM LTER data manager, located at INSTAAR, University of Colorado.                          Upon arrival at INSTAAR, the data manager combined the 4 data files, removed columns for latitude and longitude, and updated the location names to match those provided in the "soil measurement locations" file (from which latitude and longitude can be found). The resulting file was reformatted to present in ascii, comma delimited text and MS-DOS text (table layout) on the MCM LTER web site. Both of these files are linked to this web page above.                          On 28-Oct-1998, Andy Parsons discovered an error in the documentation of the storage temperature used for the soil samples collected. He informed the data manager of this error, resulting in an update from -8C to +5C in the methods portion of the page above.                          On 10-Nov-1998 Denise Steigerwald discovered a typo in the date shown for Cape Royds records represented in the 9312gsso file. Information colleced on 31-Dec-1993 showed a date of 31-Dec-1994. Denise revised these records in the Access database as well as the comma delimited text and MS-DOS text files on the web.  McMurdo Dry Valleys LTER http://mcmlter.org/ McMurdo Dry Valleys LTER http://mcmlter.org/ McMurdo Dry Valleys LTER

  At each site 5-25 soil samples were taken for organism enumeration and moisture content analysis as follows:  Sampling bags were prepared with one sterile 'Whirlpak' bag and clean plastic scoop per sample.  The location of the sampling was recorded each year so that areas were not re-sampled.  Using the plastic scoop, soil was collected to a 10 cm depth.  Very large rocks (>20 mm diameter) were excluded from the sample.  The soil was shoveled into the 'Whirlpak' bag until three quarters full (about 1.5 kg soil).  The soil was mixed well in the bag, then the bag was closed tightly, expelling as much air as possible.  The soil samples were stored in a cooler for transportation.  On return to the laboratory (within 8 hours of sampling), the soils were stored at +5 degrees C until further processing.     In the laboratory, soil samples were handled in a laminar flow hood to prevent contamination.  The Whirlpak bags of soil were mixed thoroughly prior to opening. Approximately 200cm3 of soil was placed in a pre-weighed 800mL plastic beaker. Rocks greater than 3-4mm in diameter were removed from the sample.  A sub-sample of approximately 50g was removed and placed in a pre-weighed aluminum dish, and weighed on a balance accurate to 0.01g.  This sample was dried at 105 degrees C for 24 hours.  The sample was removed, placed in a desiccator to cool down, and re-weighed.  These data were used to calculate water content of the soil and to express data as numbers of soil organisms per unit dry weight of soil.    

gsso gsso.csv 22242 1 0 \n column , " https://mcm.lternet.edu/sites/default/files/gsso.csv LOCATION LOCATION Name of area where measurement was made string Name of area where measurement was made DATE_TIME DATE_TIME Date on which sample was gathered date mm/dd/yyyy SAMPLE # SAMPLE # Sample ID string Sample ID SOIL WATER CONTENT (%) SOIL WATER CONTENT (%) Percent water found in soil dimensionless 0.0001 real 0 100 null None given COMMENTS COMMENTS Helpful hints about the sample string Helpful hints about the sample FILE NAME FILE NAME Name of file in which data was stored string Name of file in which data was stored