GE获取影像的收获-0817

1、进展报告进展报告 Reporter：Guo Ping Date：2015-8-17 日期 地点 2 目 录 第 一部分 关于GE获取影像的收获 第 二部分 论文阅读报告 日期 地点 3 第一部分 关于获取 Google Earth影像 日期 地点 1.百度搜索 日期 地点 下载了一些word文档，里面的方法并不能用 这是关于 GetScreen的 日期 地点 这是别人写的一个软 件，是2008年写的，时 间有点长了 日期 地点 2. 上帝之眼论坛 日期 地点 谷歌卫星地谷歌卫星地 图下载器图下载器 BIGMAP 谷歌卫片谷歌卫片 下载助手下载助手 LocaSpace Viewer 日期 地点

2、3. 总结 网上找不到关于下载Google earth历史影像的插 件或者方法，有可能是有的地方我们确实找不到。找 到能下载最新、并且高分辨率的影像的免费软件，如 LSV。或者是下载限流量的，如91卫图助手，或者下 载要收费的，最后只能是用截图拼接的，如Getsreen. 日期 地点 LSV下载的北京 影像，分辨率为 0.000003Degrees， 大约为0.24m。 后期正在开发能 下载多期历史影 像数据的功能 日期 地点 可以加一些关于影像数据的群，里面有人分享一些免费的 自己开发的软件，不懂的还能交流。下面是一些关于Google earth会关闭API，可能会对以后的Google ea

3、rth产生一些影像 日期 地点 12 第二部分 论文阅读 日期 地点 Expansion and growth in Chinese cities, 19782010 日期 地点 IOP Science英国皇家物理学会期刊数据库 Environmental Research Letters环境研究快报 文章来源： 日期 地点 关于作者： 地图学，地理学，遥感 波士顿大学地理与环境博士 我的研究探讨的是城市和城郊环境中土地覆盖变化的原因 和结果，特别是人口、经济和政策的变化对快速城市化和城市 扩张的影响，以及局部-全球规模的环境影响。我最近致力于 监测大范围区域的城市变化，包括比较分析城市轨迹、

4、土地利 用模式、人口增长。 日期 地点 Currently working on comprehensive land cover mapping for the state of Wisconsin through a U.S. Fish and Wildlife grant at the State Cartographers Office in Madison, WI. 目前致力于Wisconsin州的综合土地覆盖制图 日期 地点 1. 文章中综述： The environmental impacts of urban form have been well studied in rec

5、ent decades: 1）the size, structure, and growth of cities lead to significant and lasting changes in local precipitation and temperature (Weng 2001, Kaufmann et al 2007) 2）expansion of the urban heat island effect (Zhou et al 2004) reduced water quality (Shao et al 2006) 3）loss of arable land (Tan et

6、 al 2005, Seto et al 2012) 日期 地点 4）Moreover, many environmental impacts are exacerbated （恶化） when new growth is expansive and/or fragmented in form (Alberti 2005) 5）such as the low density, dispersed forms of urban expansion common in the US and other developed countries (Ewing et al 2002) 6）emergin

7、g in many rapidly developing nations as well (Leichenko and Solecki 2005). 日期 地点 Land use and transport decisions have been entirely at the hands of the central government, up until reforms were implemented in the late 1970s. The reforms leads to rapid urbanization, industrialization, and economic g

8、rowth. 日期 地点 uinvestment from the state in underperforming regions has been a key factor affecting land development (Ke 2010). uTransport infrastructure is also influenced by the private sector in some locations (Liand Li 2013). usubsequent sale/leasing of land use rights by the government form 3070

9、% of municipal budgets, which have been used to finance extensive urban development projects (Lin 2007, Lichtenberg and Ding 2009). ucities have expanded with a near doubling of urban land extent between 2000 and 2010 (Schneider et al 2014). 日期 地点 The goal of this letter is threefold： First, provide

10、 a quantitative assessment of the spatial and temporal patterns of growth in a sample of 142 cities in China using remote sensing data spanning 19782010 (figure 1). The second goal is to compare rates and patterns of urban expansion in coastal cities, to those in western cities(Lai 2002). Finally, t

11、he third goal is to connect these trends to population data since it is the growth and distribution of population that ultimately drive policy in many countries. 日期 地点 Because Chinas first wave of urbanization has been focused in coastal areas, the majority of work has been dedicated to mapping thre

12、e mega-agglomerations: (1)Beijing (Zhang et al 2002, An et al 2007) (2)Shanghai and the Yangtze River Delta (Zhang 2001, Liao et al 2008, Yue et al 2010) (3) Guangzhou and the Pearl River Delta (Weng 2001,Seto et al 2002). 2. 研究背景和研究区： 日期 地点 1）There has been an explosion of publications (150) during

13、 the last decade mapping Chinas cities, but these investigate one city at a time with little comparative analysis,and 85% focus on coastal regions. 2）A more comprehensive view of urban expansion comes from Wang et al (2012), who documented growth in 147 of Chinas largest cities for 19902010 by digit

14、izing urban extents in Landsat imagery.Their results include only a limited core area for each city; any small cities or periurban growth that may function as part of the metropolitan area were not included in their analysis. Shortcomings of early research: 日期 地点 Three important characteristics were

15、 used to define the sample for study: (a) level of economic development; (b) city size; and (c) region in which the city is located. 日期 地点 The final sample of nine footprints includes 17 agglomerations and 125 cities. Additional tests described in AlixGarcia et al (2013) allowed us to conclude that

16、these areas are representative of Chinas cities as a whole. 日期 地点 2. Background and study area selection 3. 技术路线： 日期 地点 This research also provides a more nuanced view of Chinese urban development by taking into account the effects of city size, proximity to major urban centers, and regional differe

17、nces. The impacts of these very different urban forms are unfolding currently, as Chinese cities make headlines with unprecedented air pollution, smog, traffic congestion, etc. Understanding the social, environmental, and economic effects of these urban forms is thus an area that requires further investigation. 4. 讨论和结论： 日期 地点 This research has revealed one critical result: l the majority of Chinese cities have expanded, and this trend will likely continue, so a focus on compact urban form may be unrealistic. l Rather,