On the Spectrometer Measurements of Column Water Vapor Amount in the Antarctic Atmosphere
Spectral measurement of direct solar radiation was made by a spectrometer on the ground, and the total amount of water vapor was estimated. The result was 0.09g/(cm)^2 at least in April and 0.16g/(cm)^2 at most in December. In the present work, 0.9μm near infrared absorption band of water vapor was...
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National Institute of Polar Research/National Institute of Polar Research
1981
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ftnipr:oai:nipr.repo.nii.ac.jp:00001168 2023-05-15T13:47:59+02:00 On the Spectrometer Measurements of Column Water Vapor Amount in the Antarctic Atmosphere Takashi Yamanouchi Makoto Wada 1981-10 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1168 http://id.nii.ac.jp/1291/00001168/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1168&item_no=1&attribute_id=18&file_no=1 en eng National Institute of Polar Research/National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1168 http://id.nii.ac.jp/1291/00001168/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 19, 49-61(1981-10) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1168&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1981 ftnipr 2022-11-12T19:42:00Z Spectral measurement of direct solar radiation was made by a spectrometer on the ground, and the total amount of water vapor was estimated. The result was 0.09g/(cm)^2 at least in April and 0.16g/(cm)^2 at most in December. In the present work, 0.9μm near infrared absorption band of water vapor was measured in a rather low resolution and the total absorption was obtained. Using the relation of the water vapor amount and the total absorption (curve of growth), the water vapor amount was derived from the measured total absorption. Uncertainties in the 100% transmission line and uncertainties in deriving the column amount of water vapor for the actual inhomogeneous distribution from the equivalent amount, resulted in errors. Since the measurement was made at Mizuho Station and there was no aerological data for comparison, the data of radiosonde flight at Syowa Station was compared. Efficiency of the present result and the method to obtain the column amount of water vapor were discussed. Report Antarc* Antarctic Memoirs of National Institute of Polar Research Polar Research National Institute of Polar Research Repository, Japan Antarctic The Antarctic Syowa Station Mizuho ENVELOPE(44.317,44.317,-70.683,-70.683) Mizuho Station ENVELOPE(44.317,44.317,-70.683,-70.683) |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
Spectral measurement of direct solar radiation was made by a spectrometer on the ground, and the total amount of water vapor was estimated. The result was 0.09g/(cm)^2 at least in April and 0.16g/(cm)^2 at most in December. In the present work, 0.9μm near infrared absorption band of water vapor was measured in a rather low resolution and the total absorption was obtained. Using the relation of the water vapor amount and the total absorption (curve of growth), the water vapor amount was derived from the measured total absorption. Uncertainties in the 100% transmission line and uncertainties in deriving the column amount of water vapor for the actual inhomogeneous distribution from the equivalent amount, resulted in errors. Since the measurement was made at Mizuho Station and there was no aerological data for comparison, the data of radiosonde flight at Syowa Station was compared. Efficiency of the present result and the method to obtain the column amount of water vapor were discussed. |
format |
Report |
author |
Takashi Yamanouchi Makoto Wada |
spellingShingle |
Takashi Yamanouchi Makoto Wada On the Spectrometer Measurements of Column Water Vapor Amount in the Antarctic Atmosphere |
author_facet |
Takashi Yamanouchi Makoto Wada |
author_sort |
Takashi Yamanouchi |
title |
On the Spectrometer Measurements of Column Water Vapor Amount in the Antarctic Atmosphere |
title_short |
On the Spectrometer Measurements of Column Water Vapor Amount in the Antarctic Atmosphere |
title_full |
On the Spectrometer Measurements of Column Water Vapor Amount in the Antarctic Atmosphere |
title_fullStr |
On the Spectrometer Measurements of Column Water Vapor Amount in the Antarctic Atmosphere |
title_full_unstemmed |
On the Spectrometer Measurements of Column Water Vapor Amount in the Antarctic Atmosphere |
title_sort |
on the spectrometer measurements of column water vapor amount in the antarctic atmosphere |
publisher |
National Institute of Polar Research/National Institute of Polar Research |
publishDate |
1981 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1168 http://id.nii.ac.jp/1291/00001168/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1168&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(44.317,44.317,-70.683,-70.683) ENVELOPE(44.317,44.317,-70.683,-70.683) |
geographic |
Antarctic The Antarctic Syowa Station Mizuho Mizuho Station |
geographic_facet |
Antarctic The Antarctic Syowa Station Mizuho Mizuho Station |
genre |
Antarc* Antarctic Memoirs of National Institute of Polar Research Polar Research |
genre_facet |
Antarc* Antarctic Memoirs of National Institute of Polar Research Polar Research |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1168 http://id.nii.ac.jp/1291/00001168/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 19, 49-61(1981-10) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1168&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766248244171505664 |