SAR stands for Synthetic Aperture Radar and is widely used in applications that require constant monitoring and detect change over time (especially since SAR can image day and night and through clouds). Through Sentinel Hub, users can also access Sentinel-1 data, currently the only free SAR (C-band) dataset. With two satellites circling the Earth, Sentinel-2 covers spans the entire globe and offers new images of an area every 5 days. Its 12 spectral bands range from coastal to SWIR bands.
#Google earth pro download free 2021 for free
Sentinel-2 offers 10-meter resolution in red, green, blue and near-infrared, currently the best available resolution for free satellite imagery. Sentinel Hub also gives users access to Landsat and MODIS products. This also includes a trove of historical (archive) satellite images. Through Sentinel Hub, users can access all Sentinel products, as soon as they are made available. Sentinel Hub is one of the most used portals for accessing satellite data. Hobbyists looking at pictures of different places in the world.Different licenses and pricing for commercial applications.Free to use (for non-commercial applications).Most of the data on Google Earth was taken in the last 3-4 years. If you are curious to see images of our changing world, Google Timelapse is also a great free tool. Google Earth offers free access to some of the highest resolution satellite imagery, although the highest resolution images are actually taken from airplanes. Google Earth - Free access to high resolution imagery (satellite and aerial) Current Earth observation data users looking for a single access point for procuring dataĢ.Organizations exploring the use of Earth observation data to optimize processes.Individuals looking for easy access to open data sources.Integration with other applications requires understanding of APIs.Some data types not natively available on the platform.Image processing and normalization via machine learning algorithms.Powerful API for easy integration with other applications.Easy-to-use console with in-platform onboarding tutorial.
#Google earth pro download free 2021 archive
Large archive library and in-platform tasking capabilities.Explore commercial datasets without a commitment to purchase.Multiple data sets (both open and commercial).EarthCache also offers a robust AOI, allowing developers to programmatically request data, archive and future, over their areas of interest.
It's easy to search for, purchase, and download imagery for a particular area of interest (AOI), and transparent pricing ensures customers only pay for what they use.
If you are not familiar with Earth observation data, here is an example of the contrast between high resolution (commercial data, on the left) and low resolution (open data, on the right).ĮarthCache aggregates satellite imagery and other remote sensing data from multiple providers, including Planet, Airbus, and open data sources, offering a single point of access to the world's largest virtual constellation of satellites. Near real-time, high resolution satellite data that falls within open data programs is usually only available for humanitarian reasons (Maxar Open Data program offers free high resolution data to natural disaster recovery teams). Most of the satellite data available for free is either dated (from a couple of months to a couple of years, see Google Earth), or low resolution (you can detect rough building shapes but not cars or people). More explanations on live satellite imagery in this blog post: What does real-time satellite data look like. Some focus on open (free) satellite imagery, some focus on the highest resolution satellite imagery available for purchase.If you are wondering which providers has the most up-to-date satellite imagery, the highest resolution, or the largest library for open data, we have answers.īefore we start, if you were looking for real-time satellite images of your house, these most likely do not exist - Blame Hollywood for creating false expectations. Some platforms will let you view the data in your browser, some offer download options so you can process it and extract meaningful insights. There are many sources of satellite data you can use depending on your needs.
0 kommentar(er)
