ARCASOY Consulting and Engineering Company

 

QuickBird

Quickbird is a high-resolution commercial earth observation satellite which is owned by DigitalGlobe. The satellite was launched from Vandenber Air Base, California in October 18, 2001.

QuickBird collects high-resolution commercial imagery of the Earth. The satellite collects panchromatic (black&white) imagery at 60-70 cm resolution and multispectral imagery at 2.4-meter and 2.8-meter resolutions.

QuickBird satellite imagery can be used in land cover and land use analysis, irrigation area determination, physical structure, planting density, product health and affection area determination and monitoring, field boundary and field area determination, soil type detection and development of product performans, product growth and harvesting models, mapping of agricultural and non-agricultural land use and also in fields such as Urban Planning, Infrastructure, Telecommunication, Real-Estate, Insurance, Emergency, and National Defense.

 

IKONOS

The IKONOS satellite has launched form Vandenberg Air Base in California, on September 24th 1999. IKONOS satellite is the first satellite which has high ground resolution.

With 1 meter resolution and 1 meter coordinate accuracy (RMSE)(1:2400 map scale), IKONOS satellite images are the mopst detailed and accurate images provided for commercial users.

The IKONOS satellite is a high resolution satellite with capabilities of capturing 3.2m resolution multispectral imagery Near-Infrared (NIR) and 0.82m resolution panchromatic at nadir.

The IKONOS Satellite Images have applications in both urban and rural mapping of natural resources and of natural disasters, tax mapping, agriculture and forestry analysis, mining, engineering, construction, and change detection.

LANDSAT

The LANDSAT is the longest running enterprise for acquisition of imagery of Earth from space. The first LANDSAT satellite was launched in 1972; the most recent LANDSAT 7 was launhced on April 15,1999.

The instruments on the LANDSAT satellites have acquired millions of images. These images are a unique resource for global change research and applications in agriculture, cartography, geology, forestry, regional planning, surveillance, education and national security. LANDSAT 7 data has eight spectral bands with spatial resolutions ranging from 15 to 60 meters.

Thematic Mapper (TM)

The Thematic Mapper (TM) scanner, which first appeared on LANDSAT 4 in 1982, was designed to provide improved spectral and spatial resolution over the MSS instrument. The use of more sensitive detectors, better optics and a lower orbit enabled the collection of radiation in 7 spectral bands, with a spatial resolution of 30m, and with a data range of 256 intensity levels. The wavelengths of sensors on the MSS instrument were specifically selected for agricultural purposes, i.e. to highlight vegetation differences. For TM these broad vegetation bands were subdivided to provide more discrimination, and an additional sensor was included to provide geological information.

Enhanced Thematic Mapper Plus (ETM+) 

Launched on 15 April 1999, LANDSAT 7 is the newest satellite in the series. LANDSAT 7 carries the Enhanced Thematic Mapper Plus (ETM+) sensor, which replicates the capabilities of the highly successful Thematic Mapper instruments on LANDSATs 4 and 5. The ETM+ also includes new features that make it a more versatile and efficient instrument for global change studies, land cover monitoring and assessment, and large area mapping than its design forebears.

The primary new features are:

• a panchromatic band with 15m spatial resolution

• on board, full aperture, 5% absolute radiometric calibration

• a thermal infrared channel with 60m spatial resolution.

SPOT

SPOT - the Satellite Earth Observation System was designed in France, and developed with the participation of Sweden and Belgium. The system comprises a series of spacecrafts plus ground facilities for satellite control and programming, image production and distribution.

The SPOT satellites capture panchromatic and multispectral imagery in resolutions ranging from 2.5m to 20m. The satellites are fitted with two independent imaging instruments, containing detector arrays that operate using a "Push Broom" technique. This results in high geometric accuracy across the full 60km wide swath. Each instrument is also fitted with a steerable mirror that allows it to image areas up to 27 degrees east or west off the vertical, which increases the revisit capability and provides stereo imagery for digital elevation modelling. Importantly, the SPOT satellites can be programmed to target client specific areas of interest.

SPOT History:

• SPOT 1 was launched on 22 February 1986 with 10m panchromatic and 20m multispectral capability. The satellite was withdrawn from active service on 31 December 1990.
• SPOT 2 was launched on 22 January 1990 and is still operational.
• SPOT 3 was launched on 26 September 1993. An incident occurred on 14 November 1997 and after 4 years in orbit the satellite stopped functioning.
• SPOT 4 was launched on 24 March 1998 and includes an extra Short Wave Infrared band and a (low resolution) vegetation instrument.
• SPOT 5 was launched on 4 May 2002 with 2.5m, 5m and 10m capability, as well as along-track stereoscopic sensors.

SPOT imagery has a wide range of applications, including agriculture, environment, cartography and engineering.

ASTER

ASTER ((Advanced Spaceborne Thermal Emission and Reflection Radiometer) is an imaging instrument flying on Terra satellite which was launched in December 1999 as part of NASA's Earth Observing System (EOS).

ASTER is being used to obtain detailed maps of land surface temperature, reflectance and elevation. ASTER data is expected to contribute to a wide array of global change-related application areas including vegetation and ecosystem dynamics, hazard monitoring, geology and soils, land surface climatology, hydrology, and land cover change.

DEM (Digital Elevation Model)

A Digital Elevation Model is a digital cartographic/geographic dataset of elevations in xyz coordinates. The terrain elevations for ground positions are sampled at regularly spaced horizontal intervals, and normally presented in raster/grid form. DEMs are widely used to support assessment and analysis of climate, hydrology, agriculture, forestry and biodiversity, as well as for use in simulations, telecommunications and image processing.

SRTM (Shuttle RADAR Topography Mission)

The Shuttle Radar Topography Mission (SRTM) is an international project spearheaded by the National Geospatial-Intelligence Agency and NASA whose objective is to obtain the most complete high-resolution digital topographic database of the Earth.

During the Shuttle Radar Topography Mission, a specially modified radar system flew onboard Space Shuttle Endeavour for 11 days in February of 2000. This radar system gathered data that will result in the most accurate and complete topographic map of Earth's surface that has ever been assembled.

SRTM used of a technique called radar interferometry . In radar interferometry, two radar images are taken from slightly different locations. Differences between these images allow for the calculation of surface elevation, or change. To get two radar images taken from different locations the SRTM hardware consisted of one radar antenna in the shuttle payload bay and a second radar antenna attached to the end of a mast that extended 60 meters (200 feet) from the shuttle

SRTM was launched into an orbit with an inclination of 57 degrees. This allowed SRTM's radars to cover most of Earth's land surface that lies between 60 degrees north and 56 degrees south latitude. This is about 80 percent of Earth's land mass.

Just about any project that requires accurate knowledge of the shape and height of the land can benefit from this data. Some examples are flood control, soil conservation, reforestation, volcano monitoring, earthquake research, and glacier movement monitoring.

MAP

ARCASOY Consulting, prepare variety of maps in both raster and vector formats according to the needs of the clients Raster map data are generally used as coordinated backgrounds in image processing and GIS, whike vector map data are used as base for spatial analysis and map annotation.

CRESCENT® A100 DGPS

Crescent® A100 DGPS system is including a compact, light and handy GPS receiver and an industrial handheld computer. Crescent® A100 DGPS receiver uses Bluetooth™ technology to make a wireless connection to the hendheld computer.

The handheld computer has a software which control the system, get data from receiver, run applications, use backgrounds maps and create new maps using GIS logic with Turkish interface.

Crescent® A100 DGPS system works without a need for any fixed station, subscription or any additional hardware. The system collects real-time coordinates as it started so that coordinates can be taken as point or a line and applications can be run instantly

Crescent® A100 DGPS can be mounted on devices which need coordinates for own records such as gravymeter and echo-sounder.

Specifications	Crescent® A100 DGPS
Technologyi	COAST™ Patented Signal Processing
Channels	12 Parallel
Connection	2 x RS232 or 1 x Bluetooth™ connectionı
Horizontal Accuracy	EGNOS < 1 Meter , L-Dif RTCM < 25 cm (Optional)
Satellite Tracking	GPS, EGNOS
Case	Internal antenna compact and light case
Power	7-36 VDC < 2W
GIS Supporti	Turkish Interface CE based GIS software
Hardware	Jalon üzerinden pratik kullanım
Sensor	Laser Distance Meter and Depth Meter Integration with Software
Update Rate	Up to 20 Hz
Data I/O Protocol	NMEA, RTCM, SLX Binary