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
Complete Metadata
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| 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 |
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| identifier | http://datainventory.doi.gov/id/dataset/USGS_614b9975d34e0df5fb97c6e3 |
| keyword |
[
"Arizona",
"Grand Falls",
"Relative humidity",
"Sand sheet",
"USGS:614b9975d34e0df5fb97c6e3",
"climatologyMeteorologyAtmosphere",
"deserts",
"dunes",
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"soil temperature",
"subsurface profiler"
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|
| modified | 2021-09-29T00:00:00Z |
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| spatial | -111.1681, 35.4345, -111.1680, 35.4346 |
| theme |
[
"Geospatial"
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|
| title | Temperature and relative humidity profiles at Grand Falls dune field, Arizona, collected from December 2020 to April 2021 |
