satellite imagery… Satellite Imagery: Active sensors (Sentinel-1) 5 Jan 202012 Jan 2020 Active sensor imagery, such as Synthetic Aperture Radar (SAR), provides recent images that can be extremely useful for remote trip planning. SAR imagery penetrates through clouds and does not require…
satellite imagery… Satellite Imagery: Historic Sources (Google Earth, ESRI, etc.) 11 Mar 20196 Jan 2020 Google Earth is the most mature interface for viewing historic ("best") satellite imagery, but there are a few other sources to consider. ESRI Worldview In Alaska, when Google Earth's resolution…
satellite imagery… Satellite Imagery: Passive Sensors (MODIS, Landsat, Sentinel-2) 11 Mar 20196 Jan 2020 Several public agencies collect daily/weekly passive sensor (sunlight, including visible-spectrum) imagery that can be very helpful for trip planning. These resources are particularly valuable in the fall and spring, when…
