Remote sensing for resources development and environmental management: Remote sensing for resources development and environmental management

Damen, M. C. J.

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Multivolume work

Persistent identifier:: 856342815

Title:: Remote sensing for resources development and environmental management

Sub title:: proceedings of the 7th international Symposium, Enschede, 25 - 29 August 1986

Year of publication:: 1986

Place of publication:: Rotterdam; Boston

Publisher of the original:: A. A. Balkema

Identifier (digital):: 856342815

Language:: English

Additional Notes:: Volume 1-3 erschienen von 1986-1988

Editor:: Damen, M. C. J.

Document type:: Multivolume work

Volume

Persistent identifier:: 856343064

Title:: Remote sensing for resources development and environmental management

Sub title:: proceedings of the 7th international Symposium, Enschede, 25 - 29 August 1986

Scope:: XV, 547 Seiten

Year of publication:: 1986

Place of publication:: Rotterdam; Boston

Publisher of the original:: A. A. Balkema

Identifier (digital):: 856343064

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(26,7,1)

Language:: English

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: Damen, M. C. J.

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2016

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: 1 Visible and infrared data. Chairman: F. Quiel, Liaison: N J. Mulder

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: Thematic Mapping by Satellite - A new tool for planning and management. J. W. van den Brink & R. Beck, H. Rijks

Document type:: Multivolume work

Structure type:: Chapter

94 pointing capability which result in 1) higher temporal coverage and 2) stereoscopic image recording. The thermal channel of the Thematic Mapper has a spatial resolution of 120m*120m in stead of the 30m*30m of the rest of the channels. In comparing the Thematic Mapper and the SPOT characteristics it may be expected in general that the Thematic Mapper is better equiped for thematic information extraction and SPOT is better suited for cartographic applications because of its stereoscopic capability and the 10m*10m resolution panchromatic recording mode. Table 1. Sensor characterisctics of Landsat-4 and 5 Thematic Mapper and Spot system. Sensor: TM SPOT Launch 06/1982 22/02/86 resolution(m) 30*30 10*10 20*20 spectral channels( nm) (MSS) 1 450- 520 500-590 2 520- 600 600-680 3 630- 690 790-890 4 760- 900 5 1550- 1750 6 2080- 2350 7 10.3- 12.5 (um) scene coverage(km) 185*185 60*(60 to 85) temporal 16 days period 3-5 times/26 days resolution 3.2 Thematic Mapper geometric accuracy Next to the characteristics of the satellite system the accuracy of the registration of satellite imagery to maps plays an important role. The geodetic accuracy or scene-to-map registration accuracy is dependent on the accuracy with which the Ground Control Points (GCP's) can be indicated on the imagery and on the map, the topography of the area concerned and the algorithms used for the registration. For favorable conditions, the rectified TM data can meet NMAS (US cartographic standard) for map products at scales to 1:24.000 but typical GCP configurations and average terrain conditions will conform to standards for 1:50.000 to 1:100.000 scale maps (R.Welch, 1985). It is expected that in general these accuracies will be higher in the Netherlands because of better opportunities for GCP location and because the error associated with relief displacement can be neglected. Therefore it is expected that a 1:25.000 scale accuracy can be achieved. 3.3 Discussion with planners In 1984 and 1985 DHV organized a series of meetings with central, provincial and local authorities occupied with the planning and management of land and water. During these meetings an inventory was made of the needs of satellite imagery derived information. The meetings lead to the following conclusions: - the detail on the high resolution satellite imagery makes it a valuable source of many relevant informa tion - this information can add in a cost-effective way to many planning and manegement applications - the information present in the satellite imagery is not accessible to most of the planners, because they are not familiar with the interpretation and techniques involved in using satellite imagery. These conclusions formed the reason for DHV Consulting Engineers to develop techniques to present the satellite derived information in a more user-friendly way. This lead to the development of the Satellite Thematic Map concept. 4 RESULTS 4.1 Thematic content of the Thematic Mapper imagery of the "Kromme Rijn" Area The information content of the imagery was evaluated by comparing the imagery with the topographic map 1:25.000 and vegetation/land use maps of the area. It was shown that the spatial resolution of the Thematic Mapper imagery was sufficient to discriminate between idividual fields. This was also confirmed during a field check. The color classes which could be discer ned on the Thematic Mapper imagery showed a very good resemblance to the land use classes of the topographic map. In general grassland,forest (coniferous, deciduous and mixed), agricultural fields, orchards, cities, villa ges and surfacewaters could be made from the imagery. In addition some refinements to the legend of the topo graphic map could be discriminate on the imagery. A differentiation between mais and fallow land, old and young apple orchards and management practices, for example the clearing and cutting of forest areas could be established. Also small linear tree-elements with up to a sub-pixel dimension could be distinquisted. However the possibilities for the inventory of very small (linear) features with Thematic Mapper imagery seems restricted and must be evaluated for every case in detail. 4.2 Combination of satellite imagery with the topographic map However to actually derive a land use map from the satellite imagery the interpretation of a especially forest, mais and orchards was difficult. By overlaying the satellite imagery with the topographical map this problem could be solved and an high accuracy interpretation became possible. Figure 1. Satellite Thematic Map of the "Kromme Rijn" Area: scale 1:25.000. 4.3 The As a t Rijn" Ar accordin towards Rijn" A check f the last A part o topograp] map showi 1984. F< topograpl photograj august 2't the map between ] within tl land use 5 C0NCLUS From the imagery and actua by using accuracy satellite topograph a framewo imagery ii a large i forms a f. informatii presentat: For instai of foresl applicatic Thematic f a raster c very suit Land Infoi combinatic registrati derived fr of SPOT wi instance i detailed Satellite for prese new gener satellites drasticall planning in the Ni industrial: REFERENCES Colwell,R.i and 2, Sheridar End report research of Remot Dutch) Landsat-4 S Vol. 1-4 Lillesand,T image in T.R.Jord Evaluate cartograj Thematic Maj Engineer: Spot simulal the 1984 Corporate

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