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Forest Dragon 2: Mid-term results of the European partners


Schmullius, C; Reiche, J; Leiterer, R; Cartus, O; Santoro, M; Wegmüller, U; Li, Z; Tian, X; Ling, F (2010). Forest Dragon 2: Mid-term results of the European partners. In: Symposium Dragon 2 Programme Mid-Term Results 2008–2010, Guilin City (China), 17 May 2010 - 21 May 2010, online.

Abstract

One of the main objectives of the Forest DRAGON 2 project is the evaluation of the Forest DRAGON 1 large area forest growing stock volume (GSV) maps generated for Northeast and Southeast China, based on ERS-1/2 tandem coherence data from the mid 1990s. A special cross-comparison design mainly based on freely available Earth Observation products has been developed in consequence of lack of extensive in situ measurements. A reasonable agreement above 70 % between the forest GSV maps and the EO products in terms of forest/ non-forest could be achieved for NE and SE China. The assessment of forest cover and structure changes in China from the mid 1990s into the current decade is addressed by a pilot study at the regions of Daxinganling and Xiaoxinganling. A one-year stack (2007) of Envisat ASAR GMM data has been processed at 1-km pixel size with the BIOMASAR algorithm to obtain continuous GSV. Accordingly, the ERS-1/2 tandem data has been reprocessed to 1 km to allow an intercomparison of the two products, which in turn allowed observing scaling effects on the forest GSV. Preliminary results show plausible detection of forest cover changes.

Abstract

One of the main objectives of the Forest DRAGON 2 project is the evaluation of the Forest DRAGON 1 large area forest growing stock volume (GSV) maps generated for Northeast and Southeast China, based on ERS-1/2 tandem coherence data from the mid 1990s. A special cross-comparison design mainly based on freely available Earth Observation products has been developed in consequence of lack of extensive in situ measurements. A reasonable agreement above 70 % between the forest GSV maps and the EO products in terms of forest/ non-forest could be achieved for NE and SE China. The assessment of forest cover and structure changes in China from the mid 1990s into the current decade is addressed by a pilot study at the regions of Daxinganling and Xiaoxinganling. A one-year stack (2007) of Envisat ASAR GMM data has been processed at 1-km pixel size with the BIOMASAR algorithm to obtain continuous GSV. Accordingly, the ERS-1/2 tandem data has been reprocessed to 1 km to allow an intercomparison of the two products, which in turn allowed observing scaling effects on the forest GSV. Preliminary results show plausible detection of forest cover changes.

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Additional indexing

Item Type:Conference or Workshop Item (Paper), not refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Geography
Dewey Decimal Classification:910 Geography & travel
Language:English
Event End Date:21 May 2010
Deposited On:16 Apr 2013 07:12
Last Modified:07 Dec 2017 21:00
Publisher:European Space Agency * Communication Production Office
Series Name:ESA - SP
Number:684
ISSN:1609-042X
ISBN:978-92-9221-248-3
Official URL:http://esamultimedia.esa.int/multimedia/publications/SP-684/SP-684-toc.pdf
Related URLs:http://dragon2.esa.int/symposium2010/

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