| Data Tables, Images, and Other Entities: |
| Data Table: | Stream_Field_Gauge_Measurement_Units
View Table Metadata |
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Short Name: | strmfms.dat |
| Online Distribution Info: |
| Download File: |
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| Data Set Owner(s): |
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Individual: | Diane McKnight |
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Address: |
| INSTAAR, |
| 1560 30th Street, |
| Campus Box 450 , |
| Boulder, CO 80309-0450
USA |
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| Metadata Provider(s): |
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Organization: | McMurdo Dry Valleys LTER |
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Address: |
| Byrd Polar Research Center , |
| 108 Scott Hall, |
| 1090 Carmack Rd, |
| Columbus, OH 43210-1002 USA |
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| Abstract: |
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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 the
glacial meltwater streams in that region. This table contains data pertaining to periodic
water quality parameters measured with hand meters on streams in this region.
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| Keywords: |
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- streamflow
(theme)
- hydrology
(theme)
- discharge
(theme)
- specific conductivity
(theme)
- water temperature
(theme)
- pH
(theme)
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| Additional Information: |
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| Comments |
Data collected prior to the 1993-1994 season, when the McMurdo Long-Term
Ecological Research began, does not necessarily contain information for all of the sites or
variables collected in subsequent years.
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| Citations |
McKnight, Diane, House, Harold, Von Guerard, Paul. 1994. McMurdo LTER: Streamflow Measurements in Taylor Valley. Antarctic Journal of the United States 29(5): 230-232.
Conovitz, Peter A., Diane M. McKnight, Lee H. MacDonald, Andrew G. Fountain, and Harold R. House. 1998. Hydrologic Processes Influencing Streamflow Variation in Fryxell Basin, Antarctica, in Ecosystem Processes in a Polar Desert: The McMurdo Dry Valleys, Antarctica, Antarctic Research Series 72: 93-108.
Moorhead, Daryl L., and Diane M. McKnight. 1998. McMurdo Dry Valleys LTER: Stream discharge as a function of ambient temperature and incoming shortwave radiation in Taylor Valley, Antarctica, Antarctic Journal of the United States - 1996 Review Issue (NSF 98-28), 31(2): 196-197.
Runkel, Robert L., Diane M. McKnight, and Edmund D. Andrews. 1998. Analysis of transient storage subject to unsteady flow: diel flow variation in an Antarctic stream, , J. N. Am. Benthol. Soc. 17(2): 143-154.
McKnight, Diane M., Dev K. Niyogi, Alexander S. Alger, Arne Bomblies, Peter A. Conovitz and Cathy M. Tate. 1999. Dry Valley streams in Antarctica: ecosystems waiting for water, Bioscience 49(12): 985-995.
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| Notes |
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 corrected or qualified.
Thus, these data may be modified and future data will be appended.
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| License and Usage Rights: |
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| MCM LTER data may be used freely with the following restrictions: |
The Principal Investigator be sent a notice stating reasons for acquiring any
data and a description of the publication intentions.
The Principal Investigator of the data set be sent a copy of the report or
manuscript prior to submission and be adequately cited in any resultant
publications.
A copy of any resultant publications should be sent to the McMurdo data
manager and principal investigator.
The end-user follow the guidelines set forth in the LTER Network Data Access
Policy, Data Access Requirements, and General Data Use Agreement found at
http://www.mcmlter.org/data_guidelines.htm
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| Geographic Coverage: |
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Geographic Description: | Study areas are located in the McMurdo Dry Valleys of southern Victoria
Land, Antarctica (on the western coast of the Ross Sea at 77oS). Although the majority of the
streams in the study are found in Taylor Valley, data has also been collected from streams in
the nearby Miers, Alph, Wright, Pearse, Garwood, and Victoria Valleys. An extensive network of
gauging stations was set up throughout these valleys to monitor the stream hydrology. Field
meter stream measurements are taken in close proximity to these stations. Locations thus remain
consistent from season to season. Specific latitudes and longitudes for each stream gauge can
be found in this site. |
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Bounding Coordinates:
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| West: | 162 degrees
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| East: | 163.6 degrees
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| North: | -77.2 degrees
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| South: | -77.8 degrees
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Mimimum Altitude: | 0 meter |
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Maximum Altitude: | 1000 meter |
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| Temporal Coverage: |
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Begin:
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End:
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| Maintenance: |
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Description:
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The field_meter_stream table was created by Harry House in early 1994. It was
first stored in an INGRES database, but was converted to ORACLE format in early 1996.
Modifications were generally made each year after the initial creation in the early part of
the year. It was transferred to INSTAAR in late 1997. In March, 2000, Denise Steigerwald
added some variables to this file in order to make the dataset more useful in Oracle and GIS.
These variables included dataset code, and strmgageid. In July, 2000, data for 1997-98,
1998-99 and 1999-2000 austral summers was added.
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Frequency:
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| Contact: |
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Organization: | McMurdo Dry Valleys LTER |
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Position: | Data Manager |
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Address: |
| Byrd Polar Research Center , |
| 108 Scott Hall, |
| 1090 Carmack Rd, |
| Columbus, OH 43210-1002 USA |
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Phone:
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Email Address:
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| Publisher: |
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Organization: | McMurdo Dry Valleys LTER |
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Address: |
| Byrd Polar Research Center , |
| 108 Scott Hall, |
| 1090 Carmack Rd, |
| Columbus, |
| Columbus, OH 43210-1002 USA |
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Phone:
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| Methods Info: |
| Step 1: |
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Description:
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Discharge values were derived from either visual estimates or portable
cutthroat flumes. In the case of the flumes, a flat area with smooth bottom and a clean
getaway would be chosen. The flume would then be set into the ground, and sand wingwalls
built up in front to channel all the flow into the flume. After waiting long enough to assure
that the storage capacity of the upstream reservoir was full, a reading was made inside the
flume to determine discharge.
Water temperature was generally measured in the same vicinity
as chemical sampling, if any would be done. A hand meter with a probe was used. The probe
would be inserted into the water, and a reading was taken after the time constant of the
probe elapsed.
Specific conductivity was measured with a hand meter. In some cases, the
measurement was made in situ. In other cases, a sample bottle was filled, and the measurement
was made at another location within twelve hours of the sample being taken. The probe would
be inserted, and a reading taken after the time constant of the probe elapsed. Field meters
were typically calibrated once per week against solution standards.
The pH was taken with field meters. In some cases, the measurement was made in situ. In other cases, a sample
bottle was filled, and the measurement was made at another location within twelve hours of
the sample being taken. The probe would be inserted, and a reading taken after the probe
locked on in auto mode. Care would be taken to rinse the probe off between readings, with
either dionized water, or water from the next sample regime. Field meters were typically
calibrated once per day against standard buffers.
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