excess of the image of TERRA / ASTER

One of the advantages of the images TERRA / ASTER is a higher resolution than satellite imagery precursor and its class (eg, JERS-1 and Landsat). For example the comparison page, please see Figure 1 below
Landsat TM
Comparison of image resolution TERRA / ASTER satellite with its predecessor

These advantages can improve the accuracy of the analysis results by using this image. Some examples of application of the image of TERRA / ASTER for monitoring the earth's surface, for example in the field of mines, forestry and agriculture, are shown below.

A. Spectral characteristics of minerals and rocks
Indonesia has many natural resources, thus requiring separate handling for natural resource management process does not cause any negative effects or side effects of nature and the environment, especially against living things upon the exclusion of men. Well-planned treatment will produce good results as well though. Image of TERRA / ASTER is expected to provide assistance for the preparation of solution processing (mining) to post-mining process. The satellite imagery has 14 channels, each of which has its own function in the satellite image analysis. Figure 2 shows the sensitivity of each sensor in the TERRA / ASTER (VNIR, SWIR and TIR) of each type of minerals and rocks. Examples of its application to mapping based on the absorption spectral properties of clay minerals in the mining area south Escondida, Chile

Characteristics of each sensor in the satellite TERRA / ASTER

2. Classification of soil types
Image of TERRA / ASTER can also be used to map soil types, especially for agricultural purposes, especially for spatial planning and urban design. Figure 4 shows a comparison of the classical way of mapping the mapping by using the image of TERRA / ASTER

The results of the classification of soils in agricultural areas

3. Monitoring of volcanic activity
VNIR and SWIR sensors can be applied to determine the activity of the mountain, so the damage and casualties caused by natural disasters can be avoided or reduced. TIR sensors can be used to determine the distribution of heat emitted by the clouds of the mountain, where the sensor can be operated for the afternoon and evening. Figure 5 shows the results of analysis to determine the concentration of SO2 gas spewed by Mount Oyama, Miyake Island, Japan

SO2 gas density map (Mount Oyama on Miyake island, Japan)

4. Mapping vegetation in dry areas and wet
As with other Satellite (JERS-1 and Landsat), the image of TERRA / ASTER can also be used to map the distribution of plants in the earth's surface, especially for dry and wet areas using VNIR and SWIR sensors

The results of the classification of plants Kushiro, Hokkaido, Japan.

5. Monitoring of sea surface temperature
Sea surface temperature distribution can be obtained easily using the image of TERRA / ASTER, or directly by using the image of the TIR sensor. Application of this image can be used to determine the heat distribution of sea water, where this information can be applied to determine the oceanic phenomena, including the distribution of plants and fish.

Monitoring of sea surface temperatures around the bay of Tokyo (May 16, 2000)

6. Monitoring mangrove forest (mangrove)
The destruction of mangrove forests, either intentionally or effect of changing nature, can be detected using the image of TERRA / ASTER. Some of these satellite sensors have in common with the JERS-1 and Landsat, therefore a combination of satellite imagery may be used for monitoring mangrove forests and other forests. Figure 8 shows the results of monitoring up to 10 mangrove forest with a combination of satellite imagery in the area Can Giao, Vietnam from 1973 to 2002.

Study area of ​​mangrove forests in Can Giao, Vietnam by using a combination of Landsat satellite imagery / MSS, JERS-1 and TERRA / ASTER

Magnification image of the study area of ​​mangrove forest in Can Giao, Vietnam from 1989 to 2001

The observation

7. ASTER DEM products and ortho-Z
Satellite TERRA / ASTER can also result in the earth's surface elevation data (DEM) as an example in figure 11 which shows the results of the data that dioverlay DEM-Z with an optical image of Bandung and its surrounding areas.

Birds Eye London and surrounding areas


The results of the optical image overlay with DEM-Z TERRA / ASTER (Mount Fuji, Japan).

9. Monitoring of forest fires
Figure 13 shows an example application of the image of TERRA / ASTER for monitoring forest fires in Cairns, Australia on December 25, 2001. Image of TERRA / ASTER can monitor forest fire area, where the coverage area VNIR produce fuel and cloud of smoke produced by fires they will be, SWIR shows the distribution of fuel temparature region, and the TIR shows the distribution of land burned by the intensity of land surface temperature of fuel. Red and blue in the figure shows the distribution of high and low temperatures.

Monitoring of forest fires in Cairns, Australia on December 25, 2001

10. Monitoring the temperature of the soil surface
Distribution of the earth's surface can be derived easily using data VNIR and TIR images TERRA / ASTER. Example of the decline is shown in Figure 14, where the left image shows the initial basis and the right picture tally. The application of this process can be used to determine the heating phenomena that occur in urban areas.

Analysis of land surface temperature around Mount Fuji, Japan.

11. Correlation DEM
DEM data derived from the images TERRA / ASTER (Level 1) can be obtained by the earth's surface contour information, which information can be applied to a wide range of fields, such as mining, power plants, dams or dam planning, flood prevention and others. Examples of software that can be used to create a DEM or ASTER images are TM of PCI Geomatics.