Biogeography of Tropical Montane Cloud Forests. Part II: Mapping of Orographic Cloud Immersion
Biogeography of Tropical Montane Cloud Forests. Part II: Mapping of Orographic Cloud Immersion
复制标题
热带山地云林的生物地理学。
DOI：
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发表时间：
2008
期刊：
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通讯作者：
J. Pounds
中科院分区：
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作者：
U. Nair;S. Asefi;R. Welch;D. Ray;R. Lawton;V. Manoharan;M. Mulligan;T. Sever;D. Irwin;J. Pounds
摘要本研究详细介绍了两种独特的方法来量化热带山地云雾林（TMCFs）的云浸统计。第一种方法使用一种新的算法，使用中分辨率成像光谱仪（MODIS）云产品确定云底高度，第二种方法使用数值大气模拟沿着地球同步卫星数据。2003年3月，在研究区域包括哥斯达黎加，尼加拉瓜南部和北方巴拿马，使用中分辨率成像光谱仪数据确定的云浸统计。与北方哥斯达黎加云雾林已知位置的比较表明，MODIS派生的云浸地图成功地确定了联合国环境规划署（环境署）世界养护监测中心（WCMC）数据库中已知的云雾林位置。在信风气流直接冲击山坡的地区，可以观察到大片的云浸没区域;在气流平行于山坡的地区，......
Abstract This study details two unique methods to quantify cloud-immersion statistics for tropical montane cloud forests (TMCFs). The first technique uses a new algorithm for determining cloud-base height using Moderate Resolution Imaging Spectroradiometer (MODIS) cloud products, and the second method uses numerical atmospheric simulation along with geostationary satellite data. Cloud-immersion statistics are determined using MODIS data for March 2003 over the study region consisting of Costa Rica, southern Nicaragua, and northern Panama. Comparison with known locations of cloud forests in northern Costa Rica shows that the MODIS-derived cloud-immersion maps successfully identify known cloud-forest locations in the United Nations Environment Programme (UNEP) World Conservation Monitoring Centre (WCMC) database. Large connected regions of cloud immersion are observed in regions in which the trade wind flow is directly impinging upon the mountain slopes; in areas in which the flow is parallel to the slopes,...