The Doppler Wind and Temperature Sounder, DWTS, is a patented satellite instrument concept for global sounding of upper-atmospheric winds and temperatures. A small constellation of DWTS microsats will provide wind and temperature fields from 15 to 250 km globally on a daily basis. These measurements are predicted to significantly improve medium to long-range weather forecast skill and enable comprehensive thermospheric weather prediction. Using the well-known gas-filter correlation technique to exploit the Doppler shifts naturally seen by a limb-viewing satellite, DWTS extracts kinetic temperature and horizontal wind vectors with unprecedented precision. We are currently assembling the team that will build, launch and operate a constellation of DWTS sensors for next-generation weather and space-weather forecasting.

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The Digital-Array Gas-correlation Radiometer, DAGR, is a breakthrough in commercial remote gas sensing. Derived from sensor technologies designed for NASA satellite-based science missions, a DAGR sensor will remotely detect even very small leaks in natural gas transmission pipelines. Our patented instrument design can produce images of methane plumes in real-time from high-flying aircraft, allowing faster and more reliable leak detection than anything currently available. Handheld versions can be configured with an active light source for use in short-range residential and urban applications. GATS plans to team with industry partner ABB to build, integrate and maintain these sensors in North America in the coming year.
The GFCR (Gas-Filter Correlation Radiometer) Limb Occultation sensor, or GLO, is a small, sensitive satellite instrument for measuring atmospheric trace gases. Using a technique called solar occultation, an orbiting GLO sensor stares at the Sun as it rises or sets through the atmosphere at 30 different global locations each day. GLO can be configured to sense a long list of candidate gases, including water vapor, methane, carbon dioxide, carbon monoxide, nitrous oxide and many others. The simplicity, sensitivity and small-size of these extraordinary instruments makes them ideal as add-on payloads for any research or commercial satellite. A small constellation of GLO cubesats would provide comprehensive monitoring of key constituents in the Earth’s atmosphere. GLO is currently proposed for a demonstration flight under the NASA InVEST program in collaboration with Virginia Tech, the Naval Research Laboratory, and the Space Dynamics Laboratory.
GRIPS is a geostationary instrument concept, designed to observe sources and sinks of carbon dioxide and methane the transport of key pollutants. The instrument uses gas-filter correlation sensing reflected solar and thermally emitted radiation. Similar technology has flown on HALOE, and our updated design has been successfully demonstrated in a recent SBIR program. GRIPS' horizontal resolution is 4 km, and vertically it will separate the boundary layer, mid-troposphere and total column concentrations. Scanning the visible hemisphere 8 times per day, GRIPS will monitor the daytime source variations of these important pollutants. The GRIPS project is a joint effort with University of Maryland, STC, and the Space Dynamics Lab.