Engineering topics

Vermillion, Charles H.

Publications and source records attributed to Vermillion, Charles H..

5 records

NASA NTRS1992

A Spatial Analysis and Modeling System (SAMS) for environment management

This is a proposal to develop a uniform global environmental data gathering and distribution system to support the calibration and validation of remotely sensed data. SAMS is based on an enhanced version of FE MA's Integrated Emergency Management Information Systems and the Department of Defense's Air Land Battlefield Environment Software Systems. This system consists of state-of-the-art graphics and visualization techniques, simulation models, database management and expert systems for conducting environmental and disaster preparedness studies. This software package will be integrated into various Landsat and UNEP-GRID stations which are planned to become direct readout stations during the EOS timeframe. This system would be implemented as a pilot program to support the Tropical Rainfall Measuring Mission (TRMM). This will be a joint NASA-FEMA-University-Industry project.

Vermillion, Charles H.↗

NASA NTRS1991

Observations from a constant-altitude stratospheric balloon

The paper describes a constant-altitude stratospheric balloon system, called Earthwinds, designed for high-altitude atmospheric observations. Special attention is given to the balloon's variable ballast system for altitude control; reactions of the balloon system to air motions in a stratified atmosphere; instruments for locating the balloon position, controlling the altitude, and making observations of atmospheric movements; balloon dynamics; and the atmospheric phenomena that will be observed by the balloon instruments.

Mollo-Christensen, Erik↗

NASA NTRS1991

Design considerations for EOS direct broadcast

The critical issues associated with EOS direct broadcast are investigated, and design approaches are recommended for the EOS direct broadcast transmission and ground receiving. In particular, the discussion covers the choice of data subsets for direct broadcast; the mode of transmission; impact of power, mass, and cost; design of ground stations; and the feasibility of on-board processing for direct broadcast. Data acquisition considerations for stations with data rates of 100 and 10 Mbps are examined.

Vermillion, Charles H.↗

NASA NTRS1990

A description of the Global Resources Information Database

This paper describes the Global Resources Information Database (GRID), which is part of the Global Environmental Monitoring (GEM) Program. The following four objectives were established for GRID: (1) to collect and disseminate geographical information; (2) to construct within developing countries a geographical information system (GIS); (3) to demonstrate the ability of GIS to fuse global and national data sets for resource and environment management and planning at the national level; and (4) to train individuals from developing countries in remote sensing technology. The activities of GRID are coordinated at the GEM center at Nairobi (Kenya).

Vermillion, Charles H.↗

NASA NTRS1987

Low cost, microcomputer-based interactive analysis system for direct-reception and archived remote sensing data

A hardware/software system has been developed for use in meteorological field experiments and by developing countries which need low-cost remote sensing data analysis capabilities. The system can directly receive satellite transmissions of the AVHRR, TOVS, Argos, GOES, GMS, and Meteosat systems. Also, the system can process computer tapes from Landsat. Received data are ingested directly into the computer's disk storage, eliminating the need for a wide-band analog tape drive. Data may be interpreted in terms of cloud imagery, cloudtop temperature, sea surface temperature, vegetation index, and temperature/humidity profiles with overlays of geographic boundaries and latitude/longitude grids. The image processing, enhancement functions, and modeling capabilities of the system are discussed.

Vermillion, Charles H.↗