Abstract
Clear-cutting is the most drastic and wide-spread change that affects the hydrological and carbon-balance properties of forested land in the Boreal forest zone1. A time-series of 36 Sentinel-1 images was used to study the potential for mapping clear-cut areas. The time series covered one and half year (2014-10-09. 2016-03-20) in a 200-km-by-200-kmstudy site in Finland. The Sentinel-1 images were acquired in Interferometric Wide-swath (IW), dual-polarized mode (VV+VH). All scenes were acquired in the same orbit configuration. Amplitude images (GRDH product) were used. The Sentinel-1 scenes were ortho-rectified with in-house software using a digital elevation model (DEM) produced by the Land Survey of Finland. The Sentinel-1 amplitude data were radiometrically corrected for topographic effects. The temporal behaviour of C-band backscatter was studied for areas representing 1) areas clear-cut during the acquisition of the Sentinel-1 time-series, 2) areas remaining forest during the acquisition of the Sentinel-1 time-series, and 3) areas that had been clear-cut before the acquisition of the Sentinel-1 time-series. The following observations were made: 1. The separation between clear-cut areas and forest was generally low; 2. Under certain acquisition conditions, clear-cut areas were well separable from forest; 3. The good scenes were acquired: 1) in winter during thick snow cover, and 2) in late summer towards the end of a warm and dry period; 4. The separation between clear-cut and forest was higher in VH polarized data than in VV-polarized data. 5. The separation between clear-cut and forest was higher in the winter/snow scenes than in the dry summer scenes.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of Living Planet Symposium 2016 |
| Publisher | European Space Agency ESA |
| Volume | SP-740 |
| ISBN (Print) | 9789292213053 |
| Publication status | Published - 2016 |
| MoE publication type | A4 Article in a conference publication |
| Event | Living Planet Symposium 2016 - Prague, Czech Republic Duration: 9 May 2016 → 13 May 2016 |
Conference
| Conference | Living Planet Symposium 2016 |
|---|---|
| Country | Czech Republic |
| City | Prague |
| Period | 9/05/16 → 13/05/16 |
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Keywords
- Forestry
- Logging
- Radar
- Sentinel-1
Cite this
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On clear-cut mapping with time-series of Sentinel-1 data in boreal forest. / Rauste, Yrjö; Antropov, Oleg; Mutanen, Teemu; Häme, Tuomas.
Proceedings of Living Planet Symposium 2016. Vol. SP-740 European Space Agency ESA, 2016.Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
TY - GEN
T1 - On clear-cut mapping with time-series of Sentinel-1 data in boreal forest
AU - Rauste, Yrjö
AU - Antropov, Oleg
AU - Mutanen, Teemu
AU - Häme, Tuomas
N1 - Abstract reviwed Project code: 101073
PY - 2016
Y1 - 2016
N2 - Clear-cutting is the most drastic and wide-spread change that affects the hydrological and carbon-balance properties of forested land in the Boreal forest zone1. A time-series of 36 Sentinel-1 images was used to study the potential for mapping clear-cut areas. The time series covered one and half year (2014-10-09. 2016-03-20) in a 200-km-by-200-kmstudy site in Finland. The Sentinel-1 images were acquired in Interferometric Wide-swath (IW), dual-polarized mode (VV+VH). All scenes were acquired in the same orbit configuration. Amplitude images (GRDH product) were used. The Sentinel-1 scenes were ortho-rectified with in-house software using a digital elevation model (DEM) produced by the Land Survey of Finland. The Sentinel-1 amplitude data were radiometrically corrected for topographic effects. The temporal behaviour of C-band backscatter was studied for areas representing 1) areas clear-cut during the acquisition of the Sentinel-1 time-series, 2) areas remaining forest during the acquisition of the Sentinel-1 time-series, and 3) areas that had been clear-cut before the acquisition of the Sentinel-1 time-series. The following observations were made: 1. The separation between clear-cut areas and forest was generally low; 2. Under certain acquisition conditions, clear-cut areas were well separable from forest; 3. The good scenes were acquired: 1) in winter during thick snow cover, and 2) in late summer towards the end of a warm and dry period; 4. The separation between clear-cut and forest was higher in VH polarized data than in VV-polarized data. 5. The separation between clear-cut and forest was higher in the winter/snow scenes than in the dry summer scenes.
AB - Clear-cutting is the most drastic and wide-spread change that affects the hydrological and carbon-balance properties of forested land in the Boreal forest zone1. A time-series of 36 Sentinel-1 images was used to study the potential for mapping clear-cut areas. The time series covered one and half year (2014-10-09. 2016-03-20) in a 200-km-by-200-kmstudy site in Finland. The Sentinel-1 images were acquired in Interferometric Wide-swath (IW), dual-polarized mode (VV+VH). All scenes were acquired in the same orbit configuration. Amplitude images (GRDH product) were used. The Sentinel-1 scenes were ortho-rectified with in-house software using a digital elevation model (DEM) produced by the Land Survey of Finland. The Sentinel-1 amplitude data were radiometrically corrected for topographic effects. The temporal behaviour of C-band backscatter was studied for areas representing 1) areas clear-cut during the acquisition of the Sentinel-1 time-series, 2) areas remaining forest during the acquisition of the Sentinel-1 time-series, and 3) areas that had been clear-cut before the acquisition of the Sentinel-1 time-series. The following observations were made: 1. The separation between clear-cut areas and forest was generally low; 2. Under certain acquisition conditions, clear-cut areas were well separable from forest; 3. The good scenes were acquired: 1) in winter during thick snow cover, and 2) in late summer towards the end of a warm and dry period; 4. The separation between clear-cut and forest was higher in VH polarized data than in VV-polarized data. 5. The separation between clear-cut and forest was higher in the winter/snow scenes than in the dry summer scenes.
KW - Forestry
KW - Logging
KW - Radar
KW - Sentinel-1
UR - http://www.scopus.com/inward/record.url?scp=84988485595&partnerID=8YFLogxK
M3 - Conference article in proceedings
SN - 9789292213053
VL - SP-740
BT - Proceedings of Living Planet Symposium 2016
PB - European Space Agency ESA
ER -