USING REMOTE SENSING TO IMPROVE YOUR GEOLOGIC …€¦ · USING REMOTE SENSING TO IMPROVE YOUR GEOLOGIC MAPPING & GIS FOR EXPLORATION James Ellis, Ph.D. [email protected]

USING REMOTE SENSING TO IMPROVEUSING REMOTE SENSING TO IMPROVEYOUR GEOLOGIC MAPPING & GISYOUR GEOLOGIC MAPPING & GIS

FOR EXPLORATIONFOR EXPLORATION

James Ellis, [email protected]

Walnut Creek, CA925-280-0720

Imaging & Mapping SolutionsP.D. Caldwell

Reflected blue, green, red, and near-IR light are collected as four separate B&W images. This “multispectral” sensor has 8’ (2.6 m) ground resolution. Used for generating natural color and color-infrared images and for classification and vegetation vigor/stress maps.

High resolution, panchromaticB&W image collected with 2’(0.65 m) ground resolution. Can be used alone or fused with coarser multispectral color bands.

USING HIGH-RESOLUTION SATELLITE IMAGERY TO IMPROVE

MAPPING

EGS Feb 05

USGS 1:24,000Topo Map (right)

Natural Color (above) andColor Infrared (right) - 8’(2.6 m) spatial resolution (pixels)

A TANK FARM IN NORTHERN CALIFORNIA AS SEEN ON HIGH-RESOLUTION SATELLITE IMAGERY

The Same Storage Tank

EGS Feb 05EGS Feb 05© DigitalGlobe, Inc. All Rights Reserved (2002)

D.

A. USGS 1:24,000 Topographic Map

B. 8’/2.6m Natural Color

C. 8’/2.6m Color Infrared(vegetation is red)

D. 2’/0.65m Grayscale (pan)

A. B.

C.

CLOSE-UP OF TANKS (from outer space!!)


Merging color image (8’) with high-resolution pan (B&W, 2’ image) togenerate color image with 2’/0.65m pixels

SHARPENING THE IMAGERY

8’/2.6m color

2’/0.65m B&W

2’/0.65m color


B&W Pan Image (2’ or 0.65m pixels)

Pan-Sharpened Natural Color Image (2’ or 0.65m pixels)

EGS Feb 05

SHARPENING THE IMAGERY

EGS Feb 05© DigitalGlobe, Inc. All Rights Reserved (2002)

IMAGE PROCESSING TO IMPROVE GEOLOGIC MAPPING

DigitalGlobe Quickbird Natural Color ImageBands 3, 2, 1 as Red, Green, Blue

© DigitalGlobe, Inc. All Rights Reserved (2002)

DigitalGlobe Quickbird Geologic EnhancementNear Infrared, Red, Green, Blue Bands Integrated



DigitalGlobe Quickbird Natural Color ImageBands 3,2,1 as Red, Green, Blue



DigitalGlobe Quickbird Geologic EnhancementNear IR, Red, Green, Blue Bands Integrated




From: -AAPG Distinguished Lecture, Dr. J. Ellis

1995-1996


View of vegetation-covered terrain from helicopter


1995-1996


Original Published Landsat TMImage Map

Original,Off-The-ShelfGovernment Processing EmphasizedVegetation Cover, But NotGeology

LEGENDGreens = vegetationTan-Brown = openDark Blue = waterWhite = clouds


1995-1996


Same Landsat TMData Processed to Bring Out GeologicInformation.

ProcessingHighlighted Structural& Stratigraphic Patterns.

Processing usedSpectral Information in Vegetation CoverTo Reveal NewGeologicInformation


1995-1996

EGS Feb 05

BluesGreens

RedsNear IRs

Shortwave IRs

USING HYPERSPECTRAL MAPPINGFOR OIL DETECTION & GEOLOGIC MAPPING

HYPERSPECTRALDATACUBEOF REFINERYAND INDUSTRIALSITE

Probe-1 & GeoSat Committee

DETECTING OIL SEEPS WITH HYPERSPECTRAL

“Dibblee Oil Seep”EGS Feb 05Probe-1 & GeoSat Committee

EGS Feb 05

OIL SEEP IN AREA


DIBBLEE OIL SEEP BUILDING AN OIL SPECTRAL

LIBRARY BASEDON FIELD

MEASUREMENTS

EGS Feb 05Probe-1 & GeoSat Committee

PROVING AIRBORNE SENSING MATCHES GROUND MEASUREMENT

Airborne

Ground

EGS Feb 05

Geologic Map Hyperspectral Image Zoom-in to pixel


Extrapolation of Dibblee oil seep.

Spectral signaturefrom training site pixel extrapolated to surrounding area.

Hydrocarbon Spectral SignatureEGS Feb 05

USING SPECTRAL SIGNATURE CONFIRMED IN FIELD TO FIND OTHER PIXELS THAT HAVE OIL


OriginalMap

ActualLocationsOf OilSeeps

OIL SEEP DETECTION & MAPPING

EGS Feb 05Probe-1 & GeoSat Committee

Red DotsMappedAs OilSeeps

Hyperspectral reveals clay composition of exposed terrain – can be related to stratigraphy, improving geologic map

Hyperspectral ImageEquivalent of TM 4,3,2

(veg is red)

Derived Mineral Map kaolonite-smectites (red)

montmorillinite-Illites (green)Calcite (blue)

MAPPING SURFACE GEOLOGY WITH HYPERSPECTRAL

PROBE-1 EGS Feb 05

Linking Seismic and Balanced Cross Sections

With Remote Sensing

Chevron Petroleum Company of Colombia


1995-1996-Earth Observation Magazine

Feb 1995

J.M. Ellis, W. Narr, P.B.GoodwinAnd G. Pérez

Landsat TM imageBlues = agricultureDarks = ForestWhite = CloudsPurples = High Mountains

Airborne Radar Mosaic(Acquired by Intera – now Intermap)

Illuminated from the West

Area 2

Area 1

Area 1

Area 2

Landsat TM imageBlues = agricultureDarks = ForestWhite = CloudsPinks-Whites = Open

Airborne Radar MosaicIlluminated from the West

AREA 1


New Geologic Map Interpreted from RadarAnd Field Mapping

Geologic Map Showing Well andSeismic Line

Thrusts mapped on Radar used to

Interpret Seismic

Landsat TM imageBlues = agricultureDarks = ForestWhite = Clouds


AREA 2


New Geologic MapInterpreted from Radar

And Fieldwork

Geologic MapShowing NewStructural FeatureInterpreted fromRadar

Balanced CrossSection Constrained

By RadarInterpretation

Original Geologic Map -Missing InformationDue to Cloud Cover, Lacking Structural Framework

New Digital Geologic MapImproved Structure and

Stratigraphy for GIS

REMOTE SENSING REMOTE SENSING WILLWILL IMPROVEIMPROVEYOUR GEOLOGIC MAPPING & GISYOUR GEOLOGIC MAPPING & GIS

FOR EXPLORATIONFOR EXPLORATION

James Ellis, Ph.D. [email protected]

www.ellis-geospatial.com

Walnut Creek, CA925-280-0720

Imaging & Mapping Solutions

1. PROVIDES NEW INFORMATION2. PROVIDES AN ACCURATE BASEMAP FOR GIS3. HUGE ARCHIVES OF IMAGES4. COSTS DECREASING5. GOOD GEOLOGIC PROCESSING ADDS VALUE

Documents

USING REMOTE SENSING TO IMPROVE YOUR GEOLOGIC …€¦ · USING REMOTE SENSING TO IMPROVE YOUR GEOLOGIC MAPPING & GIS FOR EXPLORATION James Ellis, Ph.D. [email protected]