Improved Atmospheric Path-Length Correction by a Dual-Frequency Microwave Radiometer
Summary :
Water vapor excess path-length (WVEP) in atmosphere, in spite of its much smaller average value than a dry air component which is stable, makes larger seasonal and diurnal variations. An estimation algorithm for WVEP is improved for less errors even in large opacity of the atmosphere and the multi-algorithm program (MAP), together with the Wu-algorithm of JPL in CalTech, is applied to make the least estimation error. A limitation of the MAP is also discussed. The differential emission measurement (DEM) is also applied to WVEP estimation is order to reduce additional errors due to measurement errors of antenna temperature, which can make them a half through one tenth of those by another algorithms. The experimental results gave proof of the effectiveness of the DEM.
- Publication
- IEICE TRANSACTIONS on transactions Vol.E66-E No.7 pp.427-434
- Publication Date
- 1983/07/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Antenna and Propagation
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Takeyuki OJIMA, "Improved Atmospheric Path-Length Correction by a Dual-Frequency Microwave Radiometer" in IEICE TRANSACTIONS on transactions,
vol. E66-E, no. 7, pp. 427-434, July 1983, doi: .
Abstract: Water vapor excess path-length (WVEP) in atmosphere, in spite of its much smaller average value than a dry air component which is stable, makes larger seasonal and diurnal variations. An estimation algorithm for WVEP is improved for less errors even in large opacity of the atmosphere and the multi-algorithm program (MAP), together with the Wu-algorithm of JPL in CalTech, is applied to make the least estimation error. A limitation of the MAP is also discussed. The differential emission measurement (DEM) is also applied to WVEP estimation is order to reduce additional errors due to measurement errors of antenna temperature, which can make them a half through one tenth of those by another algorithms. The experimental results gave proof of the effectiveness of the DEM.
URL: https://global.ieice.org/en_transactions/transactions/10.1587/e66-e_7_427/_p
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@ARTICLE{e66-e_7_427,
author={Takeyuki OJIMA, },
journal={IEICE TRANSACTIONS on transactions},
title={Improved Atmospheric Path-Length Correction by a Dual-Frequency Microwave Radiometer},
year={1983},
volume={E66-E},
number={7},
pages={427-434},
abstract={Water vapor excess path-length (WVEP) in atmosphere, in spite of its much smaller average value than a dry air component which is stable, makes larger seasonal and diurnal variations. An estimation algorithm for WVEP is improved for less errors even in large opacity of the atmosphere and the multi-algorithm program (MAP), together with the Wu-algorithm of JPL in CalTech, is applied to make the least estimation error. A limitation of the MAP is also discussed. The differential emission measurement (DEM) is also applied to WVEP estimation is order to reduce additional errors due to measurement errors of antenna temperature, which can make them a half through one tenth of those by another algorithms. The experimental results gave proof of the effectiveness of the DEM.},
keywords={},
doi={},
ISSN={},
month={July},}
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TY - JOUR
TI - Improved Atmospheric Path-Length Correction by a Dual-Frequency Microwave Radiometer
T2 - IEICE TRANSACTIONS on transactions
SP - 427
EP - 434
AU - Takeyuki OJIMA
PY - 1983
DO -
JO - IEICE TRANSACTIONS on transactions
SN -
VL - E66-E
IS - 7
JA - IEICE TRANSACTIONS on transactions
Y1 - July 1983
AB - Water vapor excess path-length (WVEP) in atmosphere, in spite of its much smaller average value than a dry air component which is stable, makes larger seasonal and diurnal variations. An estimation algorithm for WVEP is improved for less errors even in large opacity of the atmosphere and the multi-algorithm program (MAP), together with the Wu-algorithm of JPL in CalTech, is applied to make the least estimation error. A limitation of the MAP is also discussed. The differential emission measurement (DEM) is also applied to WVEP estimation is order to reduce additional errors due to measurement errors of antenna temperature, which can make them a half through one tenth of those by another algorithms. The experimental results gave proof of the effectiveness of the DEM.
ER -
English
