Galina N. Fet FET2@MARSHALL.EDU

Image Processing for Conifer Forest Detection in Tien-Shan Mountains.

Marshall University, Department of Physical Sciences

Geobiophysical Modeling Graduate Program

May 18, 2006

STUDY AREA

Environmental MonitoringNatural Resources Exploration and ConservationInternational Tourism Development

TIEN-SHAN MOUNTAINS, KYRGYZ REPUBLIC

Google Earth

STUDY OBJECTIVES

imagery classification: vegetation and non-vegetation feature extraction

      vegetation classification and

mappingusing ground data and imagery

      species database compilation for

Internet distribution

VEGETATION COMPLEXITY

Juniper or Spruce clear stands or mix

FOREST => THAN 75 %

Dwarf Juniper and shrubs

Riparian mountain forests with Spruce

Grasslands and mountain meadows with Juniper or dwarf Juniper

FOREST TYPE

GROUND CONTROL

POINTS DATA AND SPECIES GEODATABASE

DIGITAL ELEVATION

MODEL

SATELLITE IMAGERY AND

ROCESSING SOFTWARE

INCREASE QUALITY AND ACCURACY

PRODUCE ELEVATION LAYER

EXTRACT ELEVATION CONTOURS AND WATERSHEDS

BAND COMBINATION ASESSMENT AND

STATISTICS

3D VISUALIZATION

SPATIAL STATISTICS AND SURFACE ANALYSIS

IMAGE PROCESSING AND CLASSIFICATION

STEPS AND COPONENTS

PLANT ECOLOGY AND

BOTANY

SPRUCE AND JUNIPER FOREST AT HIGH ALTITUDE

ELEVATIONS

2700 m

2000 m

ELEVATION

RIPARIAN FORESTS:

SPRUCE AND JUNIPER

BIRCH AND SPRUCE

2000 M

VEGETATION CONTORURS

EXTRACTING VEGETATION

Legend

NDVI

Value

0

1-50

1 - 157

158 - 209

210 - 255

.

0 3,250 6,500 9,750 13,0001,625Meters±

ASTER BANDS 2,3

R CLAY 5/7G OXIDE 3/2B VEGETATION 4/3

Bands 3,2,1,8

BAND COMBINATIONSLANDSAT7 ETM+ ASTER

Bands 7,4,1,8

GEOLOGICAL FEATURES

GEOLOGICAL PROCESS

ASTER IMAGERY

RGB SWIR6, NIR3, VNIR1

ICE CAPS - DARK BLUE

ROCKS AND SHALE - YELLOW

TRAINING AREA

BANDS 531 5,4,2 ASTER ASTER NIR, VNIR AND THERMAL BANDS 4,3,13

TRAINING AREA

ASTER BROVEY TRANSFORM

R 4/431, G 3/431, B 1/431

SUPERVISED CLASSIFICATION

DIGITIZING CONTOURS

SPECTRAL SIGNATURES

SUPERVISED CLASSIFICATION

SPRUCE FOREST mixed with two different species of junupers (Juniperus turkestanica – dwarf juniper and Juniperus semiglobosa),

SPRUCE-BIRCH forest with shrubs and other deciduous trees in the understory.

DWARF JUNIFER SHRUBLIKE FOREST in association with numerous and diverse shrubs in the understory

SHUTTLE RADAR TOPGRAPHY MISSION

DATA (SRTM30)

30 M RESOLUTION OVER US

90 WORLD

16 M VERTICAL AND 20 M

HORIZONTAL ACCURACY

FREE FTP DONLOAD

DIGITAL ELEVATION CONTOURS

0 2,100 4,200 6,300 8,4001,050Meters

Legend

el_nat18

elev_pks2

elev_400

River_str

SRTM CONTOURS

(RED)

TOPO MAP CONTOURS

(BLACK)

ALA-ARCHA WATERSHED AND SRTM ELEVATIONS

0 5,100 10,200 15,300 20,4002,550Meters

Legend

Rivers

SRTM_u03_n042e074.tif

<VALUE>

4284 - 4724

3990 - 4283

3696 - 3989

3549 - 3695

3402 - 3548

3255 - 3401

3108 - 3254

2961 - 3107

2667 - 2960

2373 - 2666

2079 - 2372

1784 - 2078

1490 - 1783

1196 - 1489

902 - 1195

755 - 901

-32767 - 754

-32768

ELEVATION ZONES OVERLAY

VEGETATION CLASSIFICATION LAYER DRAPED OVER BAND LS543 COMBINATION

VEGETATION CLASSIFICATION LAYER DRAPED OVER SRTM DEM

USED SATELLITE IMAGE CLASSIFICATION AS A MAP BASE FOR CONIFER FOREST GEODATABASE

LANDSAT7 ETM+, ASTER, SRTM

MAPPED THE RESULTS OF BIOTIC SURVEY USSING MODERN GEOREFERENCING TECHNIQUES

DEMOSTRATED IMAGE PROCESSING TECHNIQUES AND CAPABILITIES TO RECOGNIZE LAND USE FEATURESWITH ARCGIS/ARCINFO SPATIAL ANALYST, 3D ANALYST

RESULTS

The author is grateful to the American Association for Advancement of Sciences providing opportunity for research initiation through a travel grant. Photographs by the author, SMAK and Celestial Mountains Co.