Mapping South Asian dry dipterocarp forest using dualseason satellite imagery

Mapping South Asian dry Mapping South Asian dry dipterocarp forest dipterocarp forest using dual-season satellite using dual-season satellite imagery.imagery.Hugh Stimson, Melissa Songer & Peter LeimgruberHugh Stimson, Melissa Songer & Peter Leimgruber

2nd Smithsonian Geographic Information Systems Conference 2nd Smithsonian Geographic Information Systems Conference February 11, 2005February 11, 2005

National Zoological ParkNational Zoological Park

Conservation & Research CenterConservation & Research Center

Conservation GIS LabConservation GIS Lab

Dry Dipterocarp ForestDry Dipterocarp Forest““Indaing”Indaing”

High IndaingHigh Indaing Low IndaingLow Indaing

• South East and South AsiaSouth East and South Asia• Highly seasonalHighly seasonal• Regular burningRegular burning• Occurs near humansOccurs near humans


Eld’s DeerEld’s DeerCervus eldi thaminCervus eldi thamin

LeopardLeopardPanthera pardusPanthera pardus

BatengBatengBos javanicusBos javanicus

• also Asian Hare, Barking Deer, othersalso Asian Hare, Barking Deer, others

• Cervus eldi thaminCervus eldi thamin

• Dry Dipterocarp Forest preferred habitatDry Dipterocarp Forest preferred habitat

• Gone from most of former rangeGone from most of former range

• Habitat loss most significant threatHabitat loss most significant threat

• Resident of CRCResident of CRC



• Agricultural replacementAgricultural replacement

• Timber and non-timber extractionTimber and non-timber extraction

Sensing and MappingSensing and Mapping

Chatthin National ParkChatthin National Park December 2000 ASTER imageDecember 2000 ASTER image

Chatthin National ParkChatthin National Park March 2000 ASTER imageMarch 2000 ASTER image


November 2001 Landsat imageNovember 2001 Landsat image

March 2000 Landsat imageMarch 2000 Landsat image


`̀


-- -- Protected Areas Systems Review of the Indo-Malayan RealmProtected Areas Systems Review of the Indo-Malayan Realm Asian Bureau for ConservationAsian Bureau for Conservation

Dual-Season SensingDual-Season Sensing

November 2001 image – wet seasonNovember 2001 image – wet season

March 2000 image – dry seasonMarch 2000 image – dry season


April 7 2003 MODIS image – dry seasonApril 7 2003 MODIS image – dry season

November 1 2003 MODIS image – wet seasonNovember 1 2003 MODIS image – wet season

Moderate-Resolution Imaging Moderate-Resolution Imaging Spectroradiometer (MODIS)Spectroradiometer (MODIS)• NASA operatedNASA operated• 1-2 day temporal resolution1-2 day temporal resolution• 36 discrete bands36 discrete bands• 250, 500, or 1000m pixels250, 500, or 1000m pixels

• 2300km swath2300km swath • several pre-processed productsseveral pre-processed products• freely availablefreely available



NDVI 880-660880+660

Normalized Differential Vegetation Index (NDVI)Normalized Differential Vegetation Index (NDVI)











Raw data for classification.Raw data for classification.

Dual-Season SensingDual-Season SensingAdvanced Spaceborne Thermal Advanced Spaceborne Thermal and Emmission and Reflection and Emmission and Reflection Radiometer (ASTER)Radiometer (ASTER)• NASA and Japanese Ministry of NASA and Japanese Ministry of Economy Trade and Industry Economy Trade and Industry operatedoperated• 14 discrete bands14 discrete bands• 15, 30, or 90m pixels15, 30, or 90m pixels• 60km swath 60km swath

March 7 2002 ASTER image – dry seasonMarch 7 2002 ASTER image – dry season

November 24 2001 ASTER image – wet seasonNovember 24 2001 ASTER image – wet season

Dual-Season SensingDual-Season SensingAdvanced Spaceborne Thermal Advanced Spaceborne Thermal and Emmission and Reflection and Emmission and Reflection Radiometer (ASTER)Radiometer (ASTER)• NASA and Japanese Ministry of NASA and Japanese Ministry of Economy Trade and Industry Economy Trade and Industry operatedoperated• 14 discrete bands14 discrete bands• 15, 30, or 90m pixels15, 30, or 90m pixels• 60km swath 60km swath

March 7 2002 ASTER image – dry seasonMarch 7 2002 ASTER image – dry season

November 24 2001 ASTER image – wet seasonNovember 24 2001 ASTER image – wet season

Imagery for training Imagery for training classifactation.classifactation.



Dual-Season AnalysisDual-Season Analysis





wet season NDVIwet season NDVI

ddrry y sseeaassoon n NNDDVIVI














ResultsResults

Results of supervised classification.Results of supervised classification.

ResultsResults

Results of supervised classification.Results of supervised classification.

ResultsResults

ResultsResults

Remaining to do:Remaining to do:

• Develop a landscape-level Develop a landscape-level accuracy assessment accuracy assessment approach.approach.

• Try including a digital Try including a digital elevation layer in the elevation layer in the classification model.classification model.

ResultsResults

Thanks:Thanks:Thomas Mueller, Thomas Mueller, Dan Kelly, Dan Kelly, Jamie Robertson,Jamie Robertson,Kevin KoyKevin Koy

National Zoological ParkNational Zoological Park

Conservation & Research CenterConservation & Research Center

Conservation GIS LabConservation GIS Lab

Landscape ValidationLandscape Validation

Landscape ValidationLandscape Validation

Science

Mapping South Asian dry dipterocarp forest using dualseason satellite imagery