几种遥感数据比较.docx

NASA对于有这方面兴趣的人，我推荐一本书：地球卫星遥感Dushumm共有两卷。主要是有关中分辨串成像光谱仪(Mc)DlS)产品的信息和应用，介绍了美国国家极轨环 境卫系统(NPoESS)和NPoESS豫备计划(NPP),还探讨了其他卫星遥感装备和应用，论及NASA 用于监测和探测地球变化的主要卫星系统地球观测系统(EoS) , EoS包括的卫星TeiTa、Aqua 和AlJra及其装载的MODIS、AIRS、AMSU、AMSRE OMl等遥感仪器，并讨论NPP将携带的4 个NPoESS系统重要部件：可见光红外成像辐射组件(VIIRS),航线交叉红外探测器(CrIS),先进 技术微波探测器(ATMS)以及臭氧成图和廓线仪装置(OMPS)。既包括现代遥感技术的基础知识， 又涉及卫星遥感的领域。其中负责观测陆地的Terra、负责观测地球水循环的AqUa和负责搜集大气数据的AUra共同 组成为了完整的eos地球观测系统，服务于asa的地球科学计划(ese)。1 GRACE10. Gravity Recovery and Climate Experiment (GRACE)重力恢复与气候夹嬖The primary goal of the GRACE mission is to accurately map variations in the Earth's gravity field over its 5-year lifetime. The GRACE mission has two identical spacecrafts flying about 220 kilometers apart in a polar orbit 500 kilometers above the earth.It will map the Earth's gravity fields by making accurate measurements of the distance between the two satellites, using geodetic quality Global Positioning System (GPS) receivers and a microwave ranging system. This will provide scientists from all over the world with an efficient and cost-effective way to map the Earth's gravity fields with unprecedented accuracy. The results from this mission will yield crucial information about the distribution and flow of mass within the Earth and it,s surroundings.The gravity variations that GRACE will study include: changes due to surface and deep currents in the ocean; runoff and ground water storage on land masses; exchanges between ice sheets or glaciers and the oceans; and variations of mass within the earth. Another goal of the mission is to create a better profile of the Earth's atmosphere. The results from GRACE will make a huge contribution to NASA's Earth science goals, Earth Observation System (EOS) and global climate change studies.GRACE is a joint partnership between the NASA in the United States and Deutsche Forschungsanstalt fur Luft und Raumfahrt (DLR) in Germany. Dr. Byron Tapley of The University of Texas Center for Space Research (UTCSR) is the Principal Investigator (PI), and Dr. Christoph Reigber of the GeoForschungsZentrum (GFZ) Potsdam is theCo-Principal Investigator (Co-PI). Project management and systems engineering activities are carried out by the Jet Propulsion Laboratory.9. TerraTerra is a multi-national, multi-disciplinary mission involving partnerships withthe aerospace agencies of Canada and Japan. Managed by NASA,s GoddardSpace Flight Center, the mission also receives key contributions from the JetPropulsion Laboratory and Langley Research Center. Terra is an importantpart of NASA's Science Mission, helping us better understand and protect ourhome planet.named for Earth, on December 18,1999. Terra has been collecting data aboutEarth's changing climate. Terra carries five state-of-the-art sensors that havebeen studying the interactions among the Earth's atmosphere, lands, oceans,and radiant energy. Each sensor has unique design features that will enablescientists to meet a wide range of science objectives. The five Terra onboardsensors are: ASTER, or Advanced Spaceborne Thermal Emission andReflection Radiometer （先进星载热发射和反射辐射仪）CERES, or Clouds and Earth's Radiant Energy SystemMISR, or Multi-angle Imaging SpectroradiometerMODIS, or Moderate-resolution Imaging Spectroradiometer（中分辨率成像光谱仪）MOPITT, or Measurements of Pollution in the TroposphereCorpus Christi, TexasThe city of Corpus Christi, Texas, is tucked against the southern shore of Corpus Christi Bay on the Gulf of Mexi. Inland, the city is surrounded by the large, green grid of croplands. To the south and east, the landscape is dominated by marshes, lagoons, and barrier islands, the longest of which is Padre Island. Although the part of Padre Island visible in this scene is developed with roads, residences, and resorts, just south of the southern edge of the scene, Padre Island National Seashore begins. The seashore is the longest remaining undeveloped stretch of barrier island in the world.Upstream of Corpus Christi Bay is Nueces Bay, which takes its name from one of the two freshwater inputs to the bay system, the Nueces River. The other is Oso Creek, which flows into Corpus Christi Bay along the south shore. The Corpus Christi Bay estuary is located in a semi-arid region, and the total freshwater input into the system is naturally low. Flows are further diminished by irrigation and urban water demands.These factors combine to make the system particularly sensitive to aumulation of water pollutants and salt, which compromises the health of the plants and animals that live in the estuary (including commercially and recreationally important species such as oysters and shrimp.) For these reasons, the Environmental Protection Agency has included the Corpus Christi Bay Estuary in its National Estuary Program. Their goal is to develop water re-use and conservation strategies that will meet urban, agricultural, and ecological needs as the city continues to g