Download Digital Elevation Model Data From ALOS PRISM Directly In QGIS (100% Free!!)

ALOS-1 (also known as Daichi) was launched on January 24, 2006 and completed its operational phase on  May 12, 2011, after a successful five-year acquisition worldwide. ALOS was one of the world's largest earth observation satellites tasked with collecting high-resolution land observation data on a global scale. The satellite consists of three instruments: an altitude visible and near infrared radiation meter (AVNIR-2) for accurate observation of land cover, and an L-band synthetic aperture radar (PALSAR) phased array type for day and night and all weather conditions. Was installed. Panchromatic remote sensing device (PRISM) for stereo mapping. 

 The purpose of its mission was to provide the user community with enough data to create a map at a scale of 1: 25,000. Development of digital elevation models and related geographic data products. Conduct community observations to support the Sustainable Development Goals. Natural resource research; development of sensor and satellite technologies for future Earth observation missions. And disaster monitoring around the world. The PRISM is a panchromatic radiometer onboard the ALOS-1 mission with a spatial resolution of 2.5 m  at the nadir. PRISM had three independent optical systems to display the nadir forward and backward to generate stereoscopic images along the satellite's orbit. The extracted data was developed to provide a highly accurate digital elevation model (DSM).

Now Global DEM generated from ALOS-PRISM at medium resolution (30 Meters) can be downloaded and used directly in QGIS Software. You only needs to install JAXA Earth API Plugin and you are good to go. No need for registration or API Key generation. Here is a video tutorial about how to use the plugin and maximize the benefit of the plugin for your spatial analysis needs. 


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