What is SAR?
Synthetic Aperture Radar (SAR) is a specific satellite that can capture imagery in all weather conditions, day or night. SAR sends a microwave radar signal to the earth’s surface to detect physical properties.
What are indices?
Indices are calculated using the multispectral bands. These calculations result in the outputs being in the form of an index with values between 0-1. At the same time, the indices provide additional information about the ground surface being imaged.
What Are Multispectral Outputs?
Multispectral outputs are made up of bands within the multispectral spectral ranges. The different options include true colour, false colour urban, false colour infrared, and all optical bands.
What Is Image Output?
Image output is about determining the color or bands and indices you want to obtain in order to gain valuable information about your AOI.
What Is Archive?
Using a console like EarthCache, archive satellite imagery is a purchasing option for imagery that has already been collected. Archive imagery can be passively collected by satellites that constantly collect over the earth.
What Is Tasking?
Tasking is the act of “ordering” new satellite imagery from a specific satellite. To task a satellite, coordinates of an area of interest (AOI), time frame and interval are sent to the satellite provider.
What Is Remote Sensing?
In simple terms, remote sensing is the act of detecting objects in an area and measuring their movements from space.
What Is Latency?
For satellite data, latency refers to the time between satellite observation and the time data is available to users.
What Is Temporal Resolution?
Temporal resolution, also known as re-visit rates, vary from different providers. Temporal resolution provides information on the time difference between the acquisitions of two images over the same area.
What Is Spectral Resolution?
Spectral resolution is the ability of a satellite sensor to detect distinct ranges of wavelengths in the electromagnetic spectrum.
