These teams are working to develop technical demonstrations of rice crop monitoring activities using both Synthetic Aperture Radar (SAR) data (Radarsat-2 from 2013; Sentinel-1 and ALOS-2 from 2015; TerraSAR-X, Cosmo-SkyMed, RISAT, and others) and optical imagery (such as from MODIS, SPOT-5, Landsat, and Sentinel-2). This work was conducted over Asian 100x100km Technical Demonstration Sites (TDS) as a part of phase 1 (2013-2015),with satellite –based cultivated area and growing stage maps generated. The Asia-RiCE teams are also developing satellite-based agro-met information for rice crop outlook, crop calendars and damage assessment in cooperation with ASEAN Food Security Information System (AFSIS) for selected countries (currently Indonesia, Thailand, Vietnam and Japan; http://www.afsisnc.org/blog), using JAXA's Satellite-based Monitoring Network system as a contribution to the FAO AMIS outlook (JASMIN) with University of Tokyo (http://suzaku.eorc.jaxa.jp/cgi-bin/gcomw/jasm/jasm_top.cgi).
Major Achievements, Partnerships/Linkages, & Future Plans
Asia-RiCE team members studied the TDS to estimate rice planted area, growing status, and damage area using time series SAR data from multiple providers in Indonesia, Vietnam, Asia-RiCE team members studied the TDS to estimate rice planted area, growing status, and damage area using time series SAR data from multiple providers in Indonesia, Vietnam, Thailand, Japan and others. JAXA/RESTEC teams developed the INAHOR (rice crop planted area estimation) software and NASA/CEOS SEO developed and tested a cloud computing SAR processing (INAHOR) platform for Indonesia. The CESBIO team worked to define standard ground observation data collection method and developed rice monitoring methods using Sentinel-1 time series, under the GEORICE project funded by ESA, in cooperation with VAST, Vietnam.
AsiaRiCE Mekong Radar v4
In addition, Asia-RiCE teams are working with AFSIS to provide rice crop outlook with agro-meterological information to support crop monitor activity for FAO AMIS. Because of the influence of a strong El Nino in South East Asia, there is less precipitation and changes to rain fall patterns, and crop pattern have changed which may result in decreased production, especially for dry season crop. JAXA provides drought index (KBDI) and accumulated precipitation of Tak province (Fig.3 below), Thailand where main reservoir is located, to AFSIS and national experts to assess rice crop outlook and NDVI time series to Ang Tong province where is main rice production area in downstream area of that reservoir. (Fig. 2)
Fig.2 (left). NDVI time series trend graph in Ang Thong Province, Thailand
Fig. 3. Drought Index (KBDI) and accumulated precipitation by JAXA and University of Tokyo for Bhu Mi Bol Dam area in Tak province, Thailand