Earth Imaging Journal: Remote Sensing, Satellite Images, Satellite Imagery
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soil moisture

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February 3, 2015

Successful SMAP Launch Means More Moisture Measurements

The successful launch of NASA’s Soil Moisture Active Passive (SMAP) satellite on Jan. 31, 2015, promises more accurate measurements of soil dampness. Using microwave pulses, the instrument is able to detect how much moisture is in the ground, because the moisture affects how many microwaves bounce back.

December 31, 2014

NASA’s Soil Moisture Mapping Instrument Set to Launch in January

Scheduled for launch on Jan. 29, 2015, NASA's Soil Moisture Active Passive (SMAP) instrument will measure the moisture lodged in Earth's soils with an unprecedented accuracy and resolution. The instrument's three main parts are a radar, a radiometer and the largest rotating mesh antenna ever deployed in space. Remote sensing instruments are called “active” when

October 28, 2014

Measuring Soil Moisture Via Satellite

The European Space Agency’s Soil Moisture and Ocean Salinity mission monitors the amount of water held in soil surface layers and the concentration of salt in seawater’s top layer.