Home About Browse Search
Svenska


Nation-wide clear-cut mapping in Sweden using ALOS PALSAR strip images

Santoro, Maurizio and Pantze, Andreas and Fransson, Johan E. S. and Dahlgren, Jonas and Persson, Anders (2012). Nation-wide clear-cut mapping in Sweden using ALOS PALSAR strip images. Remote sensing. 4:6, 1693-1715
[Journal article]

[img]
Preview
PDF
781kB

Official URL: http://dx.doi.org/10.3390/rs4061693

Abstract

Advanced Land Observing Satellite (ALOS) Phased Array L-band type Synthetic Aperture Radar (PALSAR) backscatter images with 50 m pixel size (strip images) at HV-polarization were used to map clear-cuts at a regional and national level in Sweden. For a set of 31 clear-cuts, on average 59.9% of the pixels within each clear-cut were correctly detected. When compared with a one-pixel edge-eroded version of the reference dataset, the accuracy increased to 88.9%. With respect to statistics from the Swedish Forest Agency, county-wise clear-felled areas were underestimated by the ALOS PALSAR dataset (between 25% and 60%) due to the coarse resolution. When compared with statistics from the Swedish National Forest Inventory, the discrepancies were larger, partly due to the estimation errors from the plot-wise forest inventory data. In Sweden, for the time frame of 2008–2010, the total area felled was estimated to be 140,618 ha, 172,532 ha and 194,586 ha using data from ALOS PALSAR, the Swedish Forest Agency and the Swedish National Forest Inventory, respectively. ALOS PALSAR strip images at HV-polarization appear suitable for detection of clear-felled areas at a national level; nonetheless, the pixel size of 50 m is a limiting factor for accurate delineation of clear-felled areas.

Authors/Creators:Santoro, Maurizio and Pantze, Andreas and Fransson, Johan E. S. and Dahlgren, Jonas and Persson, Anders
Title:Nation-wide clear-cut mapping in Sweden using ALOS PALSAR strip images
Series/Journal:Remote sensing (2072-4292)
Year of publishing :21 June 2012
Volume:4
Number:6
Page range:1693-1715
Publisher:MDPI
ISSN:2072-4292
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Updated version
Full Text Status:Public
Agris subject categories.:K Forestry > K10 Forestry production
U Auxiliary disciplines > U40 Surveying methods
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Keywords:ALOS PALSAR, radar backscatter, boreal forest, deforestation, clear-cuts, Sweden, Kyoto & Carbon Initiative
URN:NBN:urn:nbn:se:slu:epsilon-e-781
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-781
Additional ID:
Type of IDID
DOI10.3390/rs4061693
ID Code:9325
Department:(S) > Dept. of Forest Resource Management
(NL, NJ) > Dept. of Forest Resource Management
External funders:Swedish National Space Board
Deposited By: Skogsbiblioteket Umeå
Deposited On:13 Dec 2012 14:59
Metadata Last Modified:02 Dec 2014 10:54

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits