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Far-ir measurements at cerro toco, chile: first, refir, and aeri
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Johnson, David G. Cageao, Richard P. Kratz, David P. Mlynczak, Martin G. Alford, J. Ashley |
| Copyright Year | 2010 |
| Description | In mid-2009, the Radiative Heating in the Underexplored Bands Campaign II (RHUBC-II) was conducted from Cerro Toco, Chile, a high, dry, remote mountain plateau, 23degS , 67.8degW at 5.4km, in the Atacama Desert of Northern Chile. From this site, dominant IR water vapor absorption bands and continuum, saturated when viewed from the surface at lower altitudes, or in less dry locales, were investigated in detail, elucidating IR absorption and emission in the atmosphere. Three FTIR instruments were at the site, the Far-Infrared Spectroscopy of the Troposphere (FIRST), the Radiation Explorer in the Far Infrared (REFIR), and the Atmospheric Emitted Radiance Interferometer (AERI). In a side-by-side comparison, these measured atmospheric downwelling radiation, with overlapping spectral coverage from 5 to100um (2000 to 100/cm), and instrument spectral resolutions from 0.5 to 0.64/cm, unapodized. In addition to the FTIR and other ground-based IR and microwave instrumentation, pressure/temperature/relative humidity measuring sondes, for atmospheric profiles to 18km, were launched from the site several times a day. The derived water vapor profiles, determined at times matching the FTIR measurement times, were used to model atmospheric radiative transfer. Comparison of instrument data, all at the same spectral resolution, and model calculations, are presented along with a technique for determining adjustments to line-by-line calculation continuum models. This was a major objective of the campaign. |
| File Size | 1694909 |
| Page Count | 11 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20100030593 |
| Archival Resource Key | ark:/13960/t0ps2s025 |
| Language | English |
| Publisher Date | 2010-08-01 |
| Access Restriction | Open |
| Subject Keyword | Geophysics Spectroscopy Fourier Transformation Temperature Profiles Infrared Spectra Water Vapor Microwave Radiometers Far Infrared Radiation Emittance Infrared Instruments Spectral Resolution Humidity Absorption Spectra Atmospheric Radiation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
