MODIS/COMBINED MCD12Q2 Land Cover Dynamics Yearly L3 Global 500 m SIN Grid
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MODIS/Terra+Aqua Land Cover Type Yearly L3 Global 0.05Deg CMG
The Land Cover Type Yearly Climate Modeling Grid (CMG) is a lower spatial resolution (0.05?) product, which provides the dominant land cover type and also the sub-grid frequency distribution of land cover classes. The CMG product (Short name: MCD12C1) is derived using the same algorithm that produces the V005 Global 500 m Land Cover Type product (MCD12Q1). It contains three classification schemes, which describe the land cover properties derived from observations spanning a year?s input of Terra and Aqua MODIS data. The primary land cover scheme identifies 17 land cover classes defined by the International Geosphere Biosphere Programme (IGBP), which includes 11 natural vegetation classes, 3 developed and mosaicked land classes, and 3 non-vegetated land classes. It includes the following three classification schemes, derived through a supervised decision-tree classification method:
Land Cover Type 1: IGBP global vegetation classification scheme
Land Cover Type 3: MODIS-derived LAI/FPAR scheme
Land Cover Type 2: University of Maryland (UMD) scheme
Additional layers include a Land Cover Type Assessment SDS, a Land Cover Percent SDS, and a Land Cover Quality Control SDS.
Information on each individual MODIS Platform/Product are available at: https://lpdaac.usgs.gov/lpdaac/products/modis_products_table
MODIS/Terra+Aqua 土地覆盖类型年度L3全球0.05°CMG产品
土地覆盖类型年度气候建模网格(Climate Modeling Grid,简称CMG)为低空间分辨率(0.05°)产品,可提供优势土地覆盖类型以及亚网格尺度的土地覆盖类别频率分布。该CMG产品(简称:MCD12C1)采用与生成V005版全球500米土地覆盖类型产品(MCD12Q1)相同的算法研发而成。其包含三种分类方案,基于覆盖一整年的Terra和Aqua MODIS观测数据反演得到土地覆盖属性。核心土地覆盖分类方案识别出国际地圈生物圈计划(International Geosphere Biosphere Programme,简称IGBP)定义的17类土地覆盖:包括11种自然植被类别、3种开发型及镶嵌型土地类别,以及3种非植被土地类别。
该数据集包含以下三种通过监督决策树分类方法得到的分类方案:
土地覆盖类型1:IGBP全球植被分类方案
土地覆盖类型3:基于MODIS反演的叶面积指数(Leaf Area Index,简称LAI)/光合有效辐射吸收比例(Fraction of Photosynthetically Active Radiation,简称FPAR)方案
土地覆盖类型2:马里兰大学(University of Maryland,简称UMD)方案
附加图层包括土地覆盖类型评估科学数据集(Science Data Set,简称SDS)、土地覆盖百分比科学数据集以及土地覆盖质量控制科学数据集。
各MODIS平台/产品的详细信息可访问:https://lpdaac.usgs.gov/lpdaac/products/modis_products_table
创建时间:
2016-10-29



