講演名 2009-11-02
A TREND OBSERVED IN TRMM/PR MONTHLY RAINFALL PRODUCTS AND AN EVALUATION OF SAMPLING ERROR BY A BOOTSTRAP METHOD(WSANE 2009 (Workshop for Space, Aeronautical and Navigational Electronics))
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抄録(和)
抄録(英) This study examines a trend in 7-year monthly rainfall amounts (September 2001-August 2008) observed by the TRMM Precipitation Radar (PR). It is shown that the monthly rainfall amounts averaged in the range of 35°S to 35°N (PR observation range) tend to increase slightly over this period. This tendency can be considered to be affected by sampling errors due to the narrow observation swaths of the PR, in addition to natural variations. Therefore, this study developed the method of evaluating the sampling errors by a bootstrap method using the actual data observed by the PR. We examined the trend in the averaged rainfall amounts during 7 years considering the simulated sampling errors. As a result, the positive trend was significantly detected, even when sampling error was removed. From this, it can be concluded that this positive trend is highly likely to be due to natural variations.
キーワード(和)
キーワード(英) Sampling error / Bootstrap / Trend detection / Rainfall / TRMM Precipitation Radar
資料番号 SANE2009-89
発行日

研究会情報
研究会 SANE
開催期間 2009/10/26(から1日開催)
開催地(和)
開催地(英)
テーマ(和)
テーマ(英)
委員長氏名(和)
委員長氏名(英)
副委員長氏名(和)
副委員長氏名(英)
幹事氏名(和)
幹事氏名(英)
幹事補佐氏名(和)
幹事補佐氏名(英)

講演論文情報詳細
申込み研究会 Space, Aeronautical and Navigational Electronics (SANE)
本文の言語 ENG
タイトル(和)
サブタイトル(和)
タイトル(英) A TREND OBSERVED IN TRMM/PR MONTHLY RAINFALL PRODUCTS AND AN EVALUATION OF SAMPLING ERROR BY A BOOTSTRAP METHOD(WSANE 2009 (Workshop for Space, Aeronautical and Navigational Electronics))
サブタイトル(和)
キーワード(1)(和/英) / Sampling error
第 1 著者 氏名(和/英) / Yasuhisa IIDA
第 1 著者 所属(和/英)
Earth Observation Research Center, JAXA
発表年月日 2009-11-02
資料番号 SANE2009-89
巻番号(vol) vol.109
号番号(no) 265
ページ範囲 pp.-
ページ数 6
発行日