Posted on 28 August 2014
To strengthen the agricultural sector and fortify food security in Bangladesh, BRAC (Bangladesh Rural Advancement Committee) and the Center for Environmental and Geographical Information Services (CEGIS) use remote sensing technology. Satellites provide unbiased and consistently collected data of large areas, which if properly processed are the basis for agricultural monitoring and information services for farmers and decision makers.
BRAC and CEGIS need reliable information on agricultural development under various weather conditions, with special attention to the (pre-)monsoon period when it is cloudy. This information can be obtained year-round from the processing of radar and optical satellite data combined. The satellite-based data products resulting from this project will be made available through an Open Data Portal for interested stakeholders and the development of applications.
The Dutch consortium of SarVision, eLeaf, Deltares and Nelen & Schuurmans implements this project.
To demonstrate the usefulness of information obtained from the processing of radar and optical satellite in order to provide farmers with crop management information.
Satellite data available in Open data portal
For this project a combination of optical and radar satellite data is used to produce crop information. Optical satellites provide a wide range of information about crops, including biomass increase and water use efficiency. Nevertheless, given the frequent cloudy and foggy circumstances in Bangladesh, radar satellites are needed to ‘look through’ the clouds. The combined satellite data products include parameters like crop type, crop growth stage and biomass (production) and for clear periods also evapotranspiration and water stress. Every two weeks new data is collected and processed.
The consistent time-series of satellite data provide year round field information, which could be used to get information about cropping patterns, relative performance of a field compared to similar fields, areas affected by floods, storm surges, cyclones, etc.
In this project data is collected and processed for two pilot areas in the Western part of Bangladesh, one in Bogra and one in Magura. The processed satellite data will be validated with field data, to get a clear image of the actual accuracy. Based on data of the pilot areas a match will be made with actual use-cases within BRAC and other potential users. Also BRAC and CEGIS will receive training in using the data.