書誌事項
- タイトル別名
-
- Field Experiment in Tsukuba Test Site for ASTER Vicarious Calibration (Thermal Infrared Radiometer).
- ASTER ダイタイ コウセイ ノ タメ ノ ツクバ テストサイト ニ オケル フィールド ジッケン ネツ セキガイ ホウシャケイ
この論文をさがす
抄録
A preliminary field experiment for ASTER vicarious calibration (VC) was held in Tsukuba, Japan, on December 13 and 14 in 1997. Activities for ASTER/TIR (channels 10 to 14) in the experiment were water temperature measurements on Lake Kasumigaura at NOAA14 overpass times and four radiosonde observations per day. In the present paper, the effectivity of the VC of ASTER/TIR using the lake in winter is evaluated based on results from these activities.<BR>First, the top-of-atmosphere brightness temperatures (TOA-BTs) for AVHRR channels 4 and 5 are calculated from the VC with the in-situ measurements, and show very good agreements (<0.3K) with the TOA-BTs from the onboard calibration. Then, the TOA-BTs for ASTER/TIR channels are calculated with radiosonde profiles and NCEP GDAS (global data assimilation system) profiles around the lake during the experimental period, and show very good agreements (<0.3 K) with each other ; because the atmosphere around the lake was stable during the period; and because the GDAS profiles around the lake have high accuracy owing to a nearby permanent weather station. Finally, the sensitivity of input parameters to the VC of ASTER/TIR is analyzed under conditions around the lake in winter. The results show that the measurement errors of water vapor and air temperature profiles by a radiosonde are small enough for VC, the ozone profile and visibility (aerosols) errors degrades the VC of channel 12 and transparent channels respectively, and the accuracy of VC is most sensitive to water skin temperature.<BR>In the future, the VC of actual ASTER/TIR channels using the lake in winter will be executed based on the results from the present paper.
収録刊行物
-
- 日本リモートセンシング学会誌
-
日本リモートセンシング学会誌 20 (1), 63-70, 2000
一般社団法人 日本リモートセンシング学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390001204666162816
-
- NII論文ID
- 130003638603
- 10007657429
- 10005114653
-
- NII書誌ID
- AN10035665
-
- ISSN
- 18831184
- 02897911
-
- NDL書誌ID
- 5400966
-
- 本文言語コード
- ja
-
- データソース種別
-
- JaLC
- NDL
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可