GADS 3 for Windows (demo disk available) The Geographic Analysis and Display System (GADS) is a desktop mapping arid data analysis/manipulation and display application for the Windows environment. Maps of any scale or size can be created for any area of the world with the included World Data Bank II geography database (1:3 million average resolution), and customized with colour and text using the GADS paint and text tools.

ASCII or ANSI text format data files can be imported into CADS and analysed or manipulated using the Statistics and Algorithm features. Any data that have a latitude and longitude associated with them can be displayed on the map as Line contours. Filled Contours, or as text Values around a location Marker. The ASCII format Digital Chart of the World data (1:1 average resolution) can be plotted in GADS 3, and the DCW CD is currently offered free, as a limited time introductory bonus, with the purchase of GADS 3 for Windows.

A GADS map can be saved so that each pixel retains its geographic references for future data analysis, or as a Windows bitmap (without geographic references) and imported into any application which supports Windows bitmaps (e.g. CoreIDRAW, MS Word, etc.). The GADS map can be printed on any Windows-supported printer.

GADSLite A low-cost desktop mapping derivative of GADS 3 for Windows. GADSLite incorporates all the mapping, paint, and text features of CADS 3; all data handling is omitted (DCW data cannot be plotted).

DCW in ASCII CD-ROM (demo disk available) Global Digital Chart of the World geography and infrastructure data (1:1 million average resolution), in ASCII format, with latitude and longitude references. The CD contains all line and text data from the original U.S. Defense Mapping Agency version. Windows-based extraction and viewing software is included.

DCW Conversions (to Maplnfo, AutoCAD, IDRISI, Zmap Plus, or MicroCAM format) Converts the ASCII format DCW data to the format required for direct import by the specified application. Each sold separately.

Elevation Data Latitude and longitude referenced elevation data (in metres) for Canada or the continental United States, averaged onto a 5 minute by 5 minute grid (some bathymetry included). Data available by country or regional sub-set, in ASCII or Windows ANSI text format, or in GADS .mfd (binary) format. Custom field delimiters are available.

ACTIVITIES/SERVICES:

Since its founding in 1974, Ph.D. Associates has been specializing in scientific applications of computing for software design, instrument control, and data analysis. Applications range from development of commercial desktop mapping and data analysis software and customized microcomputer-controlled laboratory data collection systems, to the near-real time processing of satellite remote sensing data, and information technology.

Satellite data systems expertise includes contract work for Canadian and U.S.A. governments. For the U.S. National Hurricane Center, Ph.D. has developed Windows-based animation video software for the display of weather satellite data. Operationally, Ph.D. retrieves DMSP-SSM/I satellite imagery from the U.S. Navy, to provide near real-time remote sensing. Monitored parameters include weekly snow cover maps for provincial agencies in Alberta, Saskatchewan. and Manitoba, and sea surface wind charts delivered operationally by fax to ships for routing. These products result from the co-operative research analysis work carried out with the Atmospheric Environment Service (AES) of Environment Canada.

With a satellite tracking ground station at Ph.D. Associates' research offices, N0AA satellite AVHRR data are collected, and operational map products disseminated to AES and other clients. Since the early 1980's Ph.D. has been developing map products, monitoring stratospheric ozone and ozone depletion with data from the U.S. satellite sensor Total ozone Mapping Spectrometer. Under contract to AES, Ph.D. has been providing ozone depletion and solar Ultra-Violet radiation hazard research support, and is co-discoverer of the northern hemisphere ozone hole.

Ph.D. has prepared and installed microcomputer-controlled radiometers and data acquisition systems in field sites in Canada and the U.S.A., and aboard a Canadian ice breaker. Parameters monitored are typically water temperature, ice formation, solar radiation, ozone concentration, and automated weather station read-outs related to programs with the Canadian Atmospheric Environment Service (AES).

NOAA AVHRR data are collected at the ground station and used in conjunction with other satellite data for monitoring ozone depletion and the solar ultra-violet radiation hazard.