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Aeolian Processes in the Dry Valleys

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: Aeolian Processes in the Dry Valleys
Description:
Abstract:
This dataset contains data collected during studies of boundary layer winds and surface characteristics. These field experiments were designed to: 1. Understand and quantify the partitioning of wind shear stress between surface and roughness elements on (a) rocky surfaces and (b) surfaces with scatted rocks and intervening sand surface. 2. Test the Raupach et al (1993) shear stress partitioning model to estimate the entrainment threshold on surfaces covered with isolated roughness elements 3. Quantify the spatial distribution of surface shear stress on surfaces with scatted rocks and an intervening sand surface. 4. Understand relations between shear stress partitioning and transport of sand. The dataset includes measurements of: - Boundary Layer winds and surface shear stress - Wind speed at 6 heights above the surface (6.00 m, 3.65 m, 2.22 m, 1.35 m, 0.82 m, 0.50 m wind direction at 6 m and 0.82 m, temperature at 3.65 m. - Surface shear stress using Irwin sensors (Wyatt and Nickling, 1997) - Sand mass transport rates at the Victoria Valley site with static (Nickling and McKenna Neuman, 1997) and automated sand traps. Saltation intensity with Sensit sensor at the Victoria Valley site (Gillette and Stockton, 1986) - Wind force on simulated roughness elements using the Guelph force balance (Gillies et al., 2000; Grant and Nickling, 1998; Wyatt and Nickling, 1997). Data were sampled every 1 second and averaged for 1, 5, and 10 minute intervals. Derived data include estimates of wind shear velocity (u*), aerodynamic roughness (zo) Surface characterization data: Information on rock cover and roughness element geometry, and sand grain size and sorting parameters for surface sand and sand in transport in the Victoria Valley is also available. Datasets available: Data were obtained for 2 sites located on the north side of Lake Fryxell and in the Victoria Valley. There is also Irwin sensor calibration data for 2 sites: Wright Valley and Victoria Lower Glacier, which includes wind profile and temperature measurements. Data cover the following periods: - Wright Valley: January 11-14, 2002 - Lake Fryxell: January 15 - February 1, 2002; January 15 - February 3, 2003 - Victoria Lower Glacier: January 11-13, 2003 - Victoria Valley: January 15 - 31, 2003. Site locations are: - Lake Fryxell: 77 degrees 36.252 minutes; 163 degrees 07.827 minutes - Wright Valley: 77 degrees 31.363 minutes; 162 degrees 00.472 minutes - Victoria Valley: 77.366009935 degrees S, 162.320035048 degrees E These studies were funded by NSF grant OPP-0088136 References cited Gillette, D.A. and Stockton, P.H., 1986. Mass momentum and kinetic energy fluxes of saltating particles. In: W.G. Nickling (Editor), Aeolian Geomorphology. Allen and Unwin, Boston, London, Sydney, pp. 35-56. Gillies, J.A., Lancaster, N., Nickling, W.G. and Crawley, D., 2000. Field determination of drag forces and shear stress partitioning effects for a desert shrub (Sarcobatus vermiculatus, Greasewood). Journal of Geophysical Research, Atmospheres, 105(D20): 24871-24880. Grant, P.F. and Nickling, W.G., 1998. Direct field measurement of wind drag on vegetation for application to windbreak design and monitoring. Land Degradation and Development, 9: 57-66. Nickling, W.G. and McKenna Neuman, C., 1997. Wind tunnel evaluation of a wedge-shaped aeolian sediment trap. Geomorphology, 18(3-4): 333-346. Wyatt, V.E. and Nickling, W.G., 1997. Drag and shear stress partioning in sparse desert creosote communities. Canadian Jornal of Earth Sciences, 34: 1486-1498.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Gillette, D.A. and Stockton, P.H., 1986. Mass momentum and kinetic energy fluxes of saltating particles. In: W.G. Nickling (Editor), Aeolian Geomorphology. Allen and Unwin, Boston, London, Sydney, pp. 35-56. Gillies, J.A., Lancaster, N., Nickling, W.G. and Crawley, D., 2000. Field determination of drag forces and shear stress partitioning effects for a desert shrub (Sarcobatus vermiculatus, Greasewood). Journal of Geophysical Research, Atmospheres, 105(D20): 24871-24880. Grant, P.F. and Nickling, W.G., 1998. Direct field measurement of wind drag on vegetation for application to windbreak design and monitoring. Land Degradation and Development, 9: 57-66. Nickling, W.G. and McKenna Neuman, C., 1997. Wind tunnel evaluation of a wedge-shaped aeolian sediment trap. Geomorphology, 18(3-4): 333-346. Wyatt, V.E. and Nickling, W.G., 1997. Drag and shear stress partioning in sparse desert creosote communities. Canadian Jornal of Earth Sciences, 34: 1486-1498.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20020101
Ending_Date: 20030228
Currentness_Reference:Unknown
Status:
Progress: In Work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 162.32004
East_Bounding_Coordinate: 162.32004
North_Bounding_Coordinate: -77.36601
South_Bounding_Coordinate: -77.36601
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 163.13045
East_Bounding_Coordinate: 163.13045
North_Bounding_Coordinate: -77.6042
South_Bounding_Coordinate: -77.6042
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 162.00787
East_Bounding_Coordinate: 162.00787
North_Bounding_Coordinate: -77.5227
South_Bounding_Coordinate: -77.5227
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > SEDIMENT TRANSPORT > SEDIMENT TRANSPORT RATES
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > SEDIMENT TRANSPORT > SALTATION INTENSITY
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > AEOLIAN PROCESSES
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > SURFACE ROUGHNESS
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > BOUNDARY LAYER WINDS > WIND SPEED
Theme_Keyword: ANEMOMETERS
Theme_Keyword: SEDIMENT TRAPS
Theme_Keyword: SONIC ANEMOMETER
Theme_Keyword: TEMPERATURE SENSORS
Theme_Keyword: Saltation Intensity
Theme_Keyword: Surface Shear Stress
Theme_Keyword: Boundary Layer Wind Speeds
Theme_Keyword: Wind Force
Theme_Keyword: Sand Mass Transport Rates
Theme_Keyword: Nsf
Theme_Keyword: Opp-0088136
Theme_Keyword: Wind Shear Velocity
Theme_Keyword: Aerodynamic Roughness
Theme_Keyword: NULL
Theme_Keyword: NULL
Theme_Keyword: NULL
Theme_Keyword: NULL
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > ANTARCTICA > MCMURDO DRY VALLEYS
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: NICHOLAS LANCASTER
Contact_Position: INVESTIGATOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Desert Research Institute
Address: 2215 Raggio Parkway
City: Reno
State_or_Province: NV
Postal_Code: 89512
Country: USA
Contact_Voice_Telephone: 775 673-7304
Contact_Electronic_Mail_Address: nick@dri.edu
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Not Available
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: DRI/DEES > Division of Earth and Ecosystem Sciences, Desert Research Institute
Contact_Person: NICHOLAS LANCASTER
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Desert Research Institute
Address: 2215 Raggio Parkway
City: Reno
State_or_Province: NV
Postal_Code: 89512
Country: USA
Contact_Voice_Telephone: 775 673-7304
Contact_Electronic_Mail_Address: nick@dri.edu
Resource_Description: Aeolian processes in the McMurdo Dry Valleys
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Not Available
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://www.dri.edu/earth-ecosystem-sciences
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date: 20040723
Metadata_Review_Date: 20161121
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GCMD User Support Office
Contact_Organization: NASA Global Change Master Directory
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Not Available
City: Lanham
State_or_Province: MD
Postal_Code: 20706
Country: USA
Contact_Voice_Telephone: Not Available
Contact_Electronic_Mail_Address: gcmduso@gcmd.gsfc.nasa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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