Three-channel solar radiometer for the determination of atmospheric columnar water vapor

Kurtis J. Thome; Mark W. Smith; James M. Palmer; John A. Reagan

doi:10.1364/AO.33.005811

Three-channel solar radiometer for the determination of atmospheric columnar water vapor

Kurtis J. Thome, Mark W. Smith, James M. Palmer, John A. Reagan

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

The design of a three-channel solar radiometer used to determine total columnar atmospheric water-vapor amounts is presented. The main channel is located in the 0.94-μm water-vapor band, and two other channels are located in adjacent nonabsorption regions of the solar spectrum and are used to remove scattering effects from the main channel. Water-vapor transmittance is determined by means of a modified Langley approach, and these transmittances are converted to columnar water vapor by means of a band model developed at the University of Arizona. Several cases are presented in which columnar water-vapor amounts are determined through the use of the instrument and method described here. These results are compared with sounding-balloon results. Tests of the method indicate that columnar water vapor may be retrieved with an uncertainty of less than 10%.

Original language	English (US)
Pages (from-to)	5811-5819
Number of pages	9
Journal	Applied optics
Volume	33
Issue number	24
DOIs	https://doi.org/10.1364/AO.33.005811
State	Published - Aug 20 1994

Keywords

Atmospheric water vapor
Modified Langley method
Solar radiometry

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

Access to Document

10.1364/AO.33.005811

Cite this

@article{6467911c14c44f50b598202335a30912,

title = "Three-channel solar radiometer for the determination of atmospheric columnar water vapor",

abstract = "The design of a three-channel solar radiometer used to determine total columnar atmospheric water-vapor amounts is presented. The main channel is located in the 0.94-μm water-vapor band, and two other channels are located in adjacent nonabsorption regions of the solar spectrum and are used to remove scattering effects from the main channel. Water-vapor transmittance is determined by means of a modified Langley approach, and these transmittances are converted to columnar water vapor by means of a band model developed at the University of Arizona. Several cases are presented in which columnar water-vapor amounts are determined through the use of the instrument and method described here. These results are compared with sounding-balloon results. Tests of the method indicate that columnar water vapor may be retrieved with an uncertainty of less than 10%.",

keywords = "Atmospheric water vapor, Modified Langley method, Solar radiometry",

author = "Thome, {Kurtis J.} and Smith, {Mark W.} and Palmer, {James M.} and Reagan, {John A.}",

year = "1994",

month = aug,

day = "20",

doi = "10.1364/AO.33.005811",

language = "English (US)",

volume = "33",

pages = "5811--5819",

journal = "Applied optics",

issn = "1559-128X",

publisher = "Optica Publishing Group",

number = "24",

}

TY - JOUR

T1 - Three-channel solar radiometer for the determination of atmospheric columnar water vapor

AU - Thome, Kurtis J.

AU - Smith, Mark W.

AU - Palmer, James M.

AU - Reagan, John A.

PY - 1994/8/20

Y1 - 1994/8/20

N2 - The design of a three-channel solar radiometer used to determine total columnar atmospheric water-vapor amounts is presented. The main channel is located in the 0.94-μm water-vapor band, and two other channels are located in adjacent nonabsorption regions of the solar spectrum and are used to remove scattering effects from the main channel. Water-vapor transmittance is determined by means of a modified Langley approach, and these transmittances are converted to columnar water vapor by means of a band model developed at the University of Arizona. Several cases are presented in which columnar water-vapor amounts are determined through the use of the instrument and method described here. These results are compared with sounding-balloon results. Tests of the method indicate that columnar water vapor may be retrieved with an uncertainty of less than 10%.

AB - The design of a three-channel solar radiometer used to determine total columnar atmospheric water-vapor amounts is presented. The main channel is located in the 0.94-μm water-vapor band, and two other channels are located in adjacent nonabsorption regions of the solar spectrum and are used to remove scattering effects from the main channel. Water-vapor transmittance is determined by means of a modified Langley approach, and these transmittances are converted to columnar water vapor by means of a band model developed at the University of Arizona. Several cases are presented in which columnar water-vapor amounts are determined through the use of the instrument and method described here. These results are compared with sounding-balloon results. Tests of the method indicate that columnar water vapor may be retrieved with an uncertainty of less than 10%.

KW - Atmospheric water vapor

KW - Modified Langley method

KW - Solar radiometry

UR - http://www.scopus.com/inward/record.url?scp=0028668061&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028668061&partnerID=8YFLogxK

U2 - 10.1364/AO.33.005811

DO - 10.1364/AO.33.005811

M3 - Article

AN - SCOPUS:0028668061

SN - 1559-128X

VL - 33

SP - 5811

EP - 5819

JO - Applied optics

JF - Applied optics

IS - 24

ER -

Three-channel solar radiometer for the determination of atmospheric columnar water vapor

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this