| タイトル | Kansas environmental and resource study: A Great Plains model. Extraction of agricultural statistics from ERTS-1 data of Kansas |
| 本文（外部サイト） | http://hdl.handle.net/2060/19740010858 |
| 著者（英） | Morain, S. A.; Williams, D. L. |
| 著者所属（英） | Kansas Univ. Center for Research, Inc. |
| 発行日 | 1974-02-12 |
| 言語 | eng |
| 内容記述 | The author has identified the following significant results. Wheat area, yield, and production statistics as derived from satellite image analysis, combined with a weather model, are presented for a ten county area in southwest Kansas. The data (representing the 1972-73 crop year) are compared for accuracy against both the USDA August estimate and its final (official) tabulation. The area estimates from imagery for both dryland and irrigated winter wheat were within 5% of the official figures for the same area, and predated them by almost one year. Yield on dryland wheat was estimated by the Thompson weather model to within 0.1% of the observed yield. A combined irrigated and dryland wheat production estimate for the ten county area was completed in July, 1973 and was within 1% of the production reported by USDA in February, 1974. |
| NASA分類 | GEOPHYSICS |
| レポートNO | 74N18971
E74-10362
NASA-CR-137047 |
| 権利 | No Copyright |
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