Image CollectionsĪ stack or time series of images are called Image Collections.
Here, we will leverage GEE to create a composite satellite image representing the peak growing season for a watershed of interest. Google Earth Engine (GEE) is particularly well suited to these tasks.Ī static version of the code can be accessed here: * Exercise: Basic GEE Workflow However, cloudy skies during satellite overpass and other acquisition anomalies make certain scenes or pixels unusable.Ĥ55 Landsat scenes cover the United States:įor most regional-scale applications, you will need to combine multiple satellite images to fully cover your spatial extent and fill in missing data caused by clouds, etc. The edges of each path overlap, providing increased temporal frequency in these areas. Each scene is currently imaged every 16 days by Landsat 8, and every 16 days by Landsat 7 (approximately 45 times each year). Global Landsat data is broken up in ~180 km 2 scenes, with unique path/row identifiers. Most satellite products are broken up into tiles for distribution. Overview: Satellite Imagery at Regional Scales Understand how to map functions across image collections Perform basic image manipulation, mosaicking, and visualization All rights reserved.Learn how to access images based on filter criteria Labels and map data © OpenStreetMap contributors. Tropical storm tracks are created using the latest data from NHC, JTWC, NRL and IBTrACS. Weather forecast maps show precipitation, wind, temperature and more using the latest global model data from DWD ICON and NOAA-NWS GFS. Coverage is limited and may show glitches/anomalies. Radar maps show rain and snow detected in real-time. Heat sources show areas of high temperature using the latest data from FIRMS. HD satellite images are updated twice a day from NASA polar-orbiting satellites Aqua and Terra, using services from GIBS, part of EOSDIS.
EUMETSAT Meteosat images are updated every 15 minutes. Live satellite images are updated every 10 minutes from NOAA GOES and JMA Himawari geostationary satellites.
View LIVE satellite images, rain radar, forecast maps of wind, temperature for your location.
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