全球智库信息集成服务系统(G2TT): Forest growing stock volume of the northern hemisphere: Spatially explicit estimates for 2010 derived from Envisat ASAR.

G2TT

来源类型	Article
规范类型	其他
DOI	10.1016/j.rse.2015.07.005
	Forest growing stock volume of the northern hemisphere: Spatially explicit estimates for 2010 derived from Envisat ASAR.
	Santoro M; Beaudoin A; Beer C; Cartus O; Fransson JES; Hall RJ; Schmullius C; Schepaschenko D
发表日期	2015
出处	Remote Sensing of Environment 168: 316-334
出版年	2015
语种	英语
摘要	This paper presents and assesses spatially explicit estimates of forest growing stock volume (GSV) of the northern hemisphere (north of 10 degrees N) from hyper-temporal observations of Envisat Advanced Synthetic Aperture Radar (ASAR) backscattered intensity using the BIOMASAR algorithm. Approximately 70,000 ASAR images at a pixel size of 0.01 degrees were used to estimate GV representative for the year 2010. The spatial distribution of the GSV across four ecological zones (polar, boreal, temperate subtropical) was well captured by the ASAR-based estimates. The uncertainty of the retrieved GSV was smallest in boreal and temperate forest (< 30% for approximately 80% of the forest area) and largest in subtropical forest. ASAR-derived GSV averages at the level of admnistrative units were mostly in agreement with inventory-derived estimates. Underestimation occurred in regions of very high GSV (> 30 m^3/ha) and fragmented forest landscapes. For the major forested countries within the study region, the relative RMSE betwen ASAR-derived GSV averages at provincial level and corresponding values from National Forest Inventory was between 12% and 45% (average: 29%).
主题	Ecosystems Services and Management (ESM)
关键词	Envisat ASAR Forest Growing stock volume Biomass MODIS Vegetation Continuous Fields BIOMASAR Northern hemisphere
URL	http://pure.iiasa.ac.at/id/eprint/11410/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/130336
推荐引用方式 GB/T 7714	Santoro M,Beaudoin A,Beer C,et al. Forest growing stock volume of the northern hemisphere: Spatially explicit estimates for 2010 derived from Envisat ASAR.. 2015.