The Using Of Beijing-1 Satellite Datas To Land-use Dynamic Remote Monitoring

Remote sensing in land resources management on the application of more universal, Especially for land-use dynamic lateral aspect of remote sensing monitoring. However, in our country, as a result of remote sensing data sources are mainly spot, QuickBird satellite images and other foreign countries, resulting in project cost, and lasted a long time and so on, Therefore, the data that made in China can meet the requirements of the accuracy of land remote sensing monitoring and thus to break the dependence on foreign remote-sensing data is an urgent problem.This paper through remote monitoring of specific projects—"2007 Zhengzhou City of remote sensing dynamic monitoring of land use"to test the China-made-Data of Beijing One small satellite accuracy can meet the requirements of this project.The project work flow is: Collection of information, understanding the profile of Zhengzhou: The use of envi software, registration the images (Beijing-1 data) by before phase DOM, to ensure that registration error of less than one pixel; Because a single multi-spectral data coverage is limited, takes the same view on the three multi-spectral resolution data mosaic under the envi platform; To enable images to enhance features of interest, and the image becomes clear, interpret and improve, this item make the Smart Sharpen panchromatic image of multi-spectral color composite image by Photoshop; To make up a single image of the lack of information to improve the accuracy of remote sensing image analysis, using 4 m resolution panchromatic data with a resolution of 32 meters of multi-spectral data, based erads platform for integration, and hue, saturation adjustments; Take artificial visual interpretation and computer technology node identification and extraction of change information; Based on interpretation of results, combined with field survey and found that the city of Zheng zhou, the annual land-use change, 2007 Figure 327 spot, with a total area of 22,734.8 acres, of which new construction of 314 plaques with maps, a new building site for a total area of 21,833.5 acres. New construction land primarily for industrial warehouse space, accounting for 48 percent of land for construction purposes.The article will focus on Beijing on the 1st of satellite data for comparative analysis of the accuracy of test:Using the same region to different types of image data can be solution, the linear contrast identification accuracy features that Beijing-1 of satellite data color, shape, pattern, information-rich, clear interpretation of identification, types of solutions to high; By area of a single error and the total area of the experimental error of contrast, when the monitoring plan to draw an area of more than 10 acres of plaque, whether in Beijing-1 or the spot-5 image data of the monitoring of its error generally less than 10%, sufficient to remote monitoring of land to meet the required error limits. If an area less than 10 acres, the relative error of Beijing-1 in relation to the larger spot-5, but usually for smaller spot monitoring plans need to actual field measurements. The total area error is less than 0.5%, In this experiment to monitor the total area of 5853.52 mu, Beijing on the 1st of data error is less than the total area of±29.3 acres.The article come to the following conclusions finally:1,Beijing-1 satellite data in 2007 Zhengzhou City land use remote sensing to monitor the implementation of projects to meet the relevant technical requirements: arbitrarily select the panchromatic and multi-spectral data of the same points, the registration error of less than one pixel; found and Displayed on the drawings plaque area less than the technical specifications required by 8 acres; the success of monitoring the disaster destroyed cultivated land, farmland ecology, agriculture, structural adjustment, such as reduction of arable land and so on.2,Beijing-1 satellite data for more than 500,000 population, urban land use remote sensing monitoring of dynamic items (such as the monitoring of the Zhengzhou City) can completely replace the spot-5 data, remote monitoring of the dynamic. Spot-5 with four aspects of the data comparison can be drawn on the 1st Beijing satellite data can be in the current remote sensing monitoring of land use to play a greater role, particularly in a population of over 500,000 urban land use remote sensing to monitor the project can completely replace the spot-5 data, thereby reducing data acquisition costs, increase data acquisition speed and enhance the monitoring data of the present.