The cooperation between Brazil and China (PRC) in the space tecbnology is the first program in a high technology area between developing countries. It attempts to develop space technology in both countries on a mutual benefit basis with each country being entirely responsible for its own share in the program. In this paper we present the main characteristics of the spacecrafts being developed with special emphasis on its unique multi-sensor payload capabilities. The spacecraft carries three different imaging sensors on-board which possibilitates some new features to this class of satellites. The technologies used in designing the sensors are presented and discussed as well as the performance characteristics of the images.

Some foggy tone anomalies of grey-white and light-brown are always seen on the remote sensing imageries in some oil fields of Eastern China. The ground spectral test of vegetation and soil, and, the chemical inspection of soil. gas discovered that the spectra of vegetation and soil were different inside and outside the tons anomalies, and in which some hydrocarbon anomalies existed. Thus, the author supposed the tone anomalies might be related to the slightseepage of oil and gas. Through the digital processing of the imageries, such as contrast enhancement, regularizational alternation both of spectral and time variations etc, the tone anomalies on the imageries showed more clearly, and coincided with the known oil-gas structures very well.

An application of NOAA/AVHRR data to the monitoring of conditions of drought and waterlogging related to agricultural production is described in this paper. The CH4.2.1 colour composed images as a basis for qualitative interpretation, and the vegetation index (NDVI) which is formed from the CH₁, CH₂ reflectivity data as a quantitative standard to monitor the summer waterlogging in 1987, summer drought in 1988 and drought for winter wheat in 1989 were used.The research proved that in a desaster district the NOAA/ AVERR data can be used to determine the extent of desaster, to classify the condition of desaster, to calculate the suffering area and to monitor the tendency of desaster development,and good results call be obtained.

In this paper the regional landform specialities and its distributive regularities are analysed by using remote sensing images. The nortern part of Shaanxi Province is divided into three geomorphological regions which are hill region of loess and rock in the east, hill region of loess in the middle and wind-drift sand region in the west. Geomorghological influence on conditions of agricultural production and the influence of its regional regularities on the distribution of agriculture are analysed. Tentative views of distribution of agriculture in northern part of Shaanxi Province are presented.

A new method of surveying Profile and setting up digital terrain model with ground photos is put forward in this paper. Some formulae are inferred and working procedure of surveying section and setting up digital terrain model is concluded. The inferred formulae are very simple and regular because of adopting independent base coordinate system, and it is very convenient to define the points when the section was surveyed and to detemine model data when the digital terrain model were set up. The method of surveying section under bridge stereoscope is also discussed in this paper, and it is useful for the units which have the work presented in this paper to be done but no instruments.

A method investigating the geological background of debris flows along the famous disaster making rivers-the Dong River and the Xi River in Southwest China is briefly introduced in this paper. Based on the elevation data collected from the remote sensing images directly by means of a analytical plotter, a digital terrain model is established first, then followed by visual interpretation quantitatively and semi-quantitatively of a series of factors of geological environment, such as the characteristics of river-system, the drainage geomorphology,.the strata and rocks characters, the vegetation coverage and the disastreous geological phenomena etc.. Some useful conclusions and suggestions are made in this paper.

This paper dealt mainly with the method to map the temperature on the surface of cooling pool with the power plant in operation, and to calculate the area of water in the cooling pool and the thermal diffusion area under the condition of lukewarm water discharge in the powel plant, according to the aitborne thermal infrared scanning images of the cooling pool in Hongyanchi Power Plant in Xinjiang Autonomous Region obtained under surface wind with lm/s and 7m/s speed, and processed on S101 computer system. A preliminary analysis was made on thermal diffusion law and water surface cooling capacity of the cooling pool. Practice showed that the. investigated data have important consulting significance for the operation management of this power plant, rebuilding the layout of water intake and water outlet, and the design of expanding installed capacity.

The author found a structure resulting from rotation and shearing at the northern mountain area of Sha Zaoquan in the east of Northern Mountain of Gansu province with interpretion of remote sensing images. The vortical zone and nuclear column of the structure resulting from rotation and shearing were interpreted respectively, based on curvipplonar turns of ridges and drainage system and texture of uniform blocks, and it was demonstrated by ground examination., the nature of the surface of rotation and shearing and the directic,ction of structure resulting from rotation and shearing were definited on the nature of vortical surface. The reason of the structure resulting from rotation and shearing was analyzed further on the composition of volcanic rocks and the distribution of fractures.