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Empirical relationships among atmospheric variables from rawinsonde and field data as surrogates for aviris measurements: estimation of regional land surface evapotranspiration
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Hoover, Gordon Alley, Ron Margolis, Jack Conel, James E. Nolin, Anne |
| Copyright Year | 1992 |
| Description | Empirical relationships between variables are ways of securing estimates of quantities difficult to measure by remote sensing methods. The use of empirical functions was explored between: (1) atmospheric column moisture abundance W (gm H2O/cm(sup 2) and surface absolute water vapor density rho(q-bar) (gm H2O/cm(sup 3), with rho density of moist air (gm/cm(sup 3), q-bar specific humidity (gm H2O/gm moist air), and (2) column abundance and surface moisture flux E (gm H2O/(cm(sup 2)sec)) to infer regional evapotranspiration from Airborne Visible/Infrared Imaging Spectrometers (AVIRIS) water vapor mapping data. AVIRIS provides, via analysis of atmospheric water absorption features, estimates of column moisture abundance at very high mapping rate (at approximately 100 km(sup 2)/40 sec) over large areas at 20 m ground resolution. |
| File Size | 110060 |
| Page Count | 2 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940012239 |
| Archival Resource Key | ark:/13960/t9d55jp5m |
| Language | English |
| Publisher Date | 1992-06-01 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Imaging Spectrometers Airborne Equipment Infrared Spectrometers Humidity Evapotranspiration Rawinsondes Surface Water Atmospheric Moisture Water Vapor Earth Surface Remote Sensing Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
