Articles | Volume 19, issue 11
https://doi.org/10.5194/hess-19-4441-2015
https://doi.org/10.5194/hess-19-4441-2015
Research article
 | 
05 Nov 2015
Research article |  | 05 Nov 2015

SACRA – a method for the estimation of global high-resolution crop calendars from a satellite-sensed NDVI

S. Kotsuki and K. Tanaka

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Short summary
This study aims to develop a new global data set of a satellite-derived crop calendar (SACRA) and to reveal its advantages and disadvantages compared to other global products. The cultivation period of SACRA is identified from the time series of NDVI; therefore, SACRA considers current effects of human decisions and natural disasters. The difference between the estimated sowing dates and other existing products is less than 2 months (< 62 days) in most areas.
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