uid=MCM,o=EDI,dc=edirepository,dc=org all public read featrutm.dat Diane McKnight diane.mcknight@colorado.edu https://orcid.org/0000-0002-4171-1533 McMurdo Dry Valleys LTER http://mcmlter.org/ English

As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, a systematic sampling program has been undertaken to monitor glacial meltwater stream attributes of the region. Optical topographic surveys were performed to produce a layout of the area studied. This file provides the northing, easting, and orthogonal height information for the gage boxes, flumes and rebars set up for Andersen, House, Canada, Delta and Green Creek. NOTE: These points were omitted from the plot files for the individual sites ( found in the Stream Transect Coordinate List file), since in most cases they fall outside the map area.

easting northing stream transect Station Keywords Datum (3D) is ITRF-91. Grid coordinates are UTM Zone -58. Heights are modelled orthometric, OSU91A Geoid.

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/stream-feature-coordinates-1994 USGS site 9; coordinates taken from 1996-97 GPS measurements at center of weir Parent Stream: Andersen Creek Provenance : GPS96-97.DOC ID: andrsn_h1 162.906356800000 162.906356800000 -77.622772000000 -77.622772000000 78 78 meter USGS site 1; coordinates taken from 1996-97 GPS measurements at center of weir Parent Stream: Canada Stream Provenance : GPS96-97.DOC ID: canada_f1 163.054733300000 163.054733300000 -77.613655000000 -77.613655000000 50 50 meter USGS site 7; coordinates taken from 1996-97 GPS measurements at center of weir Parent Stream: Delta Stream Provenance : GPS96-97.DOC ID: delta_f10 163.108444200000 163.108444200000 -77.624619000000 -77.624619000000 23 23 meter Green Creek at F9Description: USGS site 8; coordinates taken from 1996-97 GPS measurements at center of weirID: green_f9 Provenance File Name :GPS96-97.DOC 163.059753417969 163.059753417969 -77.624099731445 -77.624099731445 25 25 meter House Stream at H2Description: USGS site 10; coordinates taken from 1996-97 GPS measurements at center of weirID: house_h2Provenance File Name :GPS96-97.DOC 162.741317749023 162.741317749023 -77.642982482910 -77.642982482910 81 81 meter 1994-11-29 1994-12-22  Data was collected and organized by Gordon Shupe. It was sent to Diane  McKnight and Denise Steigerwald to include in the McMurdo Dry Valley stream database. The data was initially entered into the Microsoft Access relational database. Ascii, comma delimited and MS-DOS text files were exported from Access to generate the 'featrutm.dat' and 'featrutm.txt' data files used on the web page. In spring and summer of 2000, dataset code, location code (strmtrnsid), and stream name fields were added. T McMurdo Dry Valleys LTER http://mcmlter.org/ McMurdo Dry Valleys LTER http://mcmlter.org/ McMurdo Dry Valleys LTER

 Transects were established on Taylor Valley streams during January, 1994. Gage features were positioned at transect sites 1, 2, 3, 8 and 9. Three feature types were observed as follows:  gage box = top center of the surface of the square roof of the wooden shelter housing the gage recording equipment. The "center" was not measured exactly, but an X mark was scratched into the surface of the wood at the point held. gage flume = position of the flume, measured near but not directly at the center of the flume. The reference point is the top  surface of the upper right bolthead of the four bolts securing crossbraces to the top of the flume sidewalls. gage rebar = top of an existing rebar stake, situated midstream, serving as a reference for water measurements at a site without a flume.  By performing an optical topographic survey, the northing, easting,and orthogonal heights were documented for these gage features at Andersen, House, Canada, Delta and Green Creek. 

featrutm 1 0 \n column , " Dataset code Dataset code Code representing stream feature coordinates dataset string Code representing stream feature coordinates dataset Stream name Stream name Name of McMurdo Dry Valley stream string Name of McMurdo Dry Valley stream Strmtrnsid Strmtrnsid Code representing stream transect string Code representing stream transect UTM northing (m) UTM northing (m) Northing coordinates of feature meter real Required entry None given UTM easting (m) UTM easting (m) Easting coordinates of feature meter real Required entry None given Orthometric height (m) Orthometric height (m) Orthometric height of feature meter real Required entry None given description description a short descriptive transect blurb string a short descriptive transect blurb File name File name Original file name in which this information was submitted string Original file name in which this information was submitted