2016年国外星载光学遥感卫星概览表.pdf

所需积分/C币:48 2019-10-22 17:26:29 42KB PDF
45
收藏 收藏
举报

光学卫星参数概述,自2016年发射的各种光学卫星的传感器、分辨率等
E E=ncn寸 c o cOo0 三∽> 8 E E E 另 ∑ ∽∽u E0EE8∑ 之 m∽∑O 8 8 8 m一 寸 8 8 3 6 Dash and Ogutu 33 Table 2. Main regional-to-global land cover products derived from optical remote sensing data Product Satellite Sensor Sp patlal resolution Extent/coverage GLC2000 SPOT VGT G obal and reglon GLOBCOVER 2005 ENVISAT MERIS 300m obal and region and 2009 MODIS Land Cover Aqua, Terra MODIS 500m Global Type(MCD i2Q1) FAO-Global Land Landsat TM/ETM Global Cover share CORINE IRS/Rapid Eye LISS-II,ulss-Ⅳ, 100 m, 250 m Regional AWIFS, RapidEye Globeland30 andsat Landsat 5 and etm 30m China Environmental H Disaster alleviation Satellite offers a greater possibility of understanding land- urban sprawl Ji et al., 2006; Kasanko et al scape dynamics at the finer scales compared to 2006) Kasanko et al.(2006)used landuse data the previous global land cover products with spa- derived from high spatial resolution remote sen- tial resolutions greater than 100 m (Table 2). sing images(e.g. the iRS satellite)stored in the Figure 1 shows the level of distinction between Monitoring LANd use/cover Dynamics land cover types achievable from the 2010 Glob moland database(maintained by the joint Land30 product compared with the 2009 gloB- Research Centre of the european commission) CoVER product over a heterogeneous landscape to show the dispersion characteristics and level in heilongjiang province in northern China. The of compactness of 15 european cities. This high spatial 30 m) resolution GlobeLand30 study showed that the southern European cities product is 'less pixelated'and provides a more are more compact compared to northern and detailed view of land cover variability compared eastern cities, while the western cities are mid to the coarse spatial resolution globECoVer way between the two extremes. Ji et al.(2006) product. This enhanced detail is useful for pro- used Landsat data to show a significant increase viding accurate characterisation of land cover in built-up areas at the expense of vegetation types and studying their dynamics over time cover in Kansas City, USA, between 1970 and Land cover data derived from remote sensing 2001. The recently released GlobeLand30 land data has been used in various applications. cover product has successfully been used to Brink and Eva(2009)used land cover data show that, globally, most land surface water is derived from Landsat images to show a 57% mainly distributed in the mid-to-high latitude increase in agricultural areas and a 21% reduc- areas of the northern hemisphere and the tropics tion of natural vegetation over Africa between and there has been a slight decrease in the area 1975 and 2000. Lunetta et al. (2006)used a land of land surface water(Cao et al., 2014). Land cover map derived from the modis sensor to cover data has also been used to characterise identify a 0.7% annual rate of land cover change vegetation distribution in primary productivity in the albemarle-Pamlico Estuary System models Running et al., 2004) (APES) region of the USA. Data from optical The usefulness of the land cover products is remote sensing has also been used in mapping dependent on their accuracy, which depends on 334 Progress in Physical Geography 40(2) Table 3. Operational vegetation biogeophysical products derived from optical remote sensing data Spatial Coverage/ Product Satellite Sensor resolution extent LAl and Fapar CYLOPES LAI/FAPAR SPOT VGT i km GLOBCARBON ENVISAT. SPOT 4. MERIS VGT kmto0.5° Globa LAIFAPAR SPOT 5 MODIS LAUFAPAR Terra and aqua MODIS i km POLDER FAPAR/LAI POLDER- ADEOS-I 6 km Global POLDER-2 ADEOS-2 SEVIRI LAUFAPAR MSG SEVIRI 3 km Global FCOVER CYCLOPES FCC∨ER SPOT Global MODIS Vegetation Terra and aqua MODIS 250m Continuous fields Vegetation Indices MERIS Terrestria ENVISAT MERIS 4.63 Regional and Chlorophyll Index-MTC oba AVHRR NDVI NOAA AVHRR 8 ki MODIS NDVI Terra and aqua MODIS 250mto0.5°G|obal MODIS EV Terra and Aqua MODIS 250mto0.5°G|o MeRiS Global Vegetation ENVISAT MERIS 2 km Index-MGⅥl Vegetation biogeophysical variables derived 2005; Ogutu et al., 2013; Running et al., 2004 from remote sensing data are important in mon- Vegetation indices have been used to estimate itoring many aspects of global terrestrial eco- crop production and the potential impacts of systems. For example, vegetation phenology climate change on crop production Bolton and information, such as phenological indicators of Friedl, 2013; Duncan et al. 2015; Kowalik the start of growing season derived from optical et al., 2014). Due to the significance of these remote sensing data, have been used to show vegetation biogeophysical variables, a number that the onset of the growing season has been of operational products have been generated advancing by up to 20 days over the last three from optical remote sensing data by the major decades, especially in the Northern Hemi- space agencies and satellite operators(Table 3) sphere, due to global warming (Badeck et al., Even though data from optical remote sen 2004: Chen et al., 2005; Cong et al. 2013: Dash sing data has proved valuable in monitoring var et al. 2010, 2013 White et al., 2005, 2009 Xu ious vegetation biogeophysical variables, a et al., 2013). The LAI from optical remote sen- number of uncertainties still remain in using sing data has been used to characterise vegeta- these data to effectively monitor terrestrial eco tion condition in process-based models used to systems. One key source of uncertainty is the understand changes in terrestrial ecosystems robustness of the methods used to derive these under changing climate conditions(Sitch vegetation biophysical variables. The empirical et al., 2003; Smith et al 2001). FAPAR is often approaches are driven by experimental data col- used in diagnostic models to estimate vegetation lected in selected field locations. High costs productivity and carbon exchange( Ciais et al., and the labour intensiveness of in situ data

...展开详情
试读 5P 2016年国外星载光学遥感卫星概览表.pdf
立即下载 身份认证后 购VIP低至7折
一个资源只可评论一次,评论内容不能少于5个字
您会向同学/朋友/同事推荐我们的CSDN下载吗?
谢谢参与!您的真实评价是我们改进的动力~
  • 分享宗师

关注 私信
上传资源赚钱or赚积分
最新推荐
2016年国外星载光学遥感卫星概览表.pdf 48积分/C币 立即下载
1/5
2016年国外星载光学遥感卫星概览表.pdf第1页

试读结束, 可继续读1页

48积分/C币 立即下载