Temperature and relative humidity profiles at Grand Falls dune field, Arizona, collected from December 2020 to April 2021
Sand covers a significant portion of the Earth’s surface, including the Grand Falls area of Coconino County, AZ. The vadose zone (unsaturated zone) in a soil is of particular interest because it is broadly applicable to desert soils, which are seldom saturated and usually dry. In the absence of strong geothermal heating, the near-surface soil temperature profile is expected to exhibit maximum variation (for a given diurnal period) at the surface, with the diurnal variations becoming successively damped with depth. The temperature at a given depth is the result of diffusive heat transport vertically within the soil column. Water vapor also is expected to be transported via diffusion through the soil column [1].
We have selected a sand sheet within the Grand Falls Dune Field (GFDF) and deployed temperature and relative humidity sensors at 5 different depths: 1, 6, 12, 24, and 48 cm to capture diurnal temperature and humidity variations.
[1] Hillel, D., (1980) Fundamentals of Soil Physics
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "Kaj E Williams", "@type": "vcard:Contact", "hasEmail": "mailto:kewilliams@usgs.gov" } |
| description | Sand covers a significant portion of the Earth’s surface, including the Grand Falls area of Coconino County, AZ. The vadose zone (unsaturated zone) in a soil is of particular interest because it is broadly applicable to desert soils, which are seldom saturated and usually dry. In the absence of strong geothermal heating, the near-surface soil temperature profile is expected to exhibit maximum variation (for a given diurnal period) at the surface, with the diurnal variations becoming successively damped with depth. The temperature at a given depth is the result of diffusive heat transport vertically within the soil column. Water vapor also is expected to be transported via diffusion through the soil column [1]. We have selected a sand sheet within the Grand Falls Dune Field (GFDF) and deployed temperature and relative humidity sensors at 5 different depths: 1, 6, 12, 24, and 48 cm to capture diurnal temperature and humidity variations. [1] Hillel, D., (1980) Fundamentals of Soil Physics |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Digital Data", "format": "XML", "accessURL": "https://doi.org/10.5066/P9BXCN7E", "mediaType": "application/http", "description": "Landing page for access to the data" }, { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "XML", "mediaType": "text/xml", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.614b9975d34e0df5fb97c6e3.xml" } ] |
| identifier | http://datainventory.doi.gov/id/dataset/USGS_614b9975d34e0df5fb97c6e3 |
| keyword |
[ "Arizona", "Grand Falls", "Relative humidity", "Sand sheet", "USGS:614b9975d34e0df5fb97c6e3", "climatologyMeteorologyAtmosphere", "deserts", "dunes", "geoscientificInformation", "soil temperature", "subsurface profiler" ] |
| modified | 2021-09-29T00:00:00Z |
| publisher |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | -111.1681, 35.4345, -111.1680, 35.4346 |
| theme |
[ "geospatial" ] |
| title | Temperature and relative humidity profiles at Grand Falls dune field, Arizona, collected from December 2020 to April 2021 |
