Environmental and Geomatics Services

8/6/2019 Environmental and Geomatics Services

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AGENDAAGENDA

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ArcGIS Desktop software (Version 9.3) with all extensions

ArcGIS Server software (2007)

ERDAS software (Version 9.3)

Ten high end workstations, Dedicated server, Large format plotter

Mobile Mapper units, Survey tools

Twelve well-trained Staff (Geologists, Geographers, Biologists,

Computer/GIS programmers, Environmental specialists, System Engineers)

Environmental Mapping and Surveying

Geographic Information System Applications

Remote Sensing Applications

Global Positioning System SurveysGIS Programming tools and expertise

Geodatabase hosting


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Mar 5, 2009

3. Gulf Coastal Resources Baseline Assessment Project

3

Jan-Feb2009 Field visits

Dead sealife near Abu Ali Island

(GCRBA)


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Current Phase of Activity Shoreline Habitat Map


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Mar 5, 2009Gulf Coastal ResourcesBaseline Assessment

3. GCRBA Contd.

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Mar 5, 2009 6

Model

Tar remnant at Munifa - Jan2009

21 Feb 2009

3. GCRBA Contd.


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Mar 5, 2009 7

Photomap (prepared by Aerial Survey Department, KSA)

(Procured in August2008)

Hydrographic Charts(Procured in Sept2008)

Satellite Pour l'Observation de la Terre

(SPOT) image (Purchased in October2008)

Ministry ofMunicipal and Rural Affairs(MOMRA)- Ground Control Point (GCP)and data from aerial photographs(Procured in November2008)

QuickBird/IKONOS image (Sample Imagesof 2008 received and Purchase order released for

the entire area)

Hydrographic Chart Number of sheets

1:200,000 7

Photomap Type Number of sheets

1:50,000 51

1:100,000 3

1:250,000 9

1:500,000 4

Spatial Resolution Number of Scenes

20 Meters 31

GPS data Aerial Photographs

Microsoft worddocument file for 35locations

DGN files for Al Ahsa,Uqayr and other 54

loctaions

IKONOS IMAGE

Dawhat Bilbul (Data Capture: Sept2008)


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Real

World

Data

Primary

data

Collection

Secondary

data

Collection

Geographical Information System

Database Management System

Digital Data

Storage

Processing

Manipulation

Analysis

Output

Developer

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Stand alone Web Mobile

Components for creating

custom desktop GIS

applications

Geopublishing on the

Internet

GIS capabilities in the

field. Capture, edit,

analyze, and display

geographic information

GIS Development Tools

Stand alone Web Mobile

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GIS Development software


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Mar 5, 2009

Ground Truth (Field Validation)Ground Truth (Field Validation)

(a) Preparation of the map in laboratory using satellite images

(b) Shore-perpendicular profiles (based on availability of roads/boats):(Upto 10m contour/10km landward and upto 12 nautical miles/10m water depth)

(c) Division of project area into different zones

(d) Verifying the positions of the coastline/coastal promontory using GPS

(e) Verification on (i) Salt Marsh, (ii) Sabhka, (iii) Sand strand plain, (iv) Rocky shore and (v) Mangrove

(f) Water quality investigations to determine the landward limit of coastal zone

(g) Demarcation of tourism zone, industrial zone, natural resources conservation zone, Estuary

zone, urban zone, No construction area (salt marsh/swamp/desert), Agricultural land, Land fills,

(h) Identification of typical floral-faunal species, with the help of specialists either in-situ or ex-situ

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Environmental Mapping:


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Sea Truth(Field Validation)Sea Truth(Field Validation)

Environmental Mapping:

Location of Tide gauge stations, Datum points, Promontories, cliff, sea wall

etc. along the coast line

Water soundings, adjusted to the mean sea level (MSL) datum using local

fixed benchmarks of known elevation or GPS

Coral (Dead or Live), Sea Grass, Algal bloom

Bottom sediments (Clay, Sand, Shell)

Vicinity of Ports, Oil installations, Refineries

Marine protected areas, Aquaculture farms

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y Web Enabled Software for Environmental data

Web Server

internet

Clients

Develeopment using ASP.NET, Javascript, HTML

Final Phase...

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1. State of the art GIS Laboratory:

2. Environmental and Geomatics Services

3. Gulf Coastal Resources Baseline AssessmentProject

4. Data Products

5. Image Processing/ GIS Programming Capabilities

6. Field Validation

7. Summary of Work Completed

8. Support Services to UNCC, PPP

GIS Dept is equipped to support the UNCC and

PPP programs (in terms of geodatabase acquistion,

Baseline assessments and geospatial data handling)

Fixed the standards (platform and data quality)

for GIS data migration.

Registered and processed Topo maps, hydrographiccharts, SPOT images and aerial photo information.


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Mar 5, 2009

PhotomapPhotomap -- Fact SheetFact Sheet

Toposheet coverage

Projection Information

Gulf Coastal Resources BaselineAssessment Mar 5, 2009 13


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Mar 5, 2009

y Mosaiced 50KPhotomap

Gulf Coastal Resources BaselineAssessment

Photomap

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Mar 5, 2009Gulf Coastal Resources BaselineAssessment

Bahrain to Abu Ali

Source : East View Cartographic Inc.,USA

Scanned Resolution : 400 dpi Datum specification : UTM 39N WGS-84

Reregistered to meet accuracy

Number of control points used : 20(average number of points)fined : GCSWGS 84

Root Mean Square Error 0.005

Subset image Mosaic image Software used : ERDAS Imagine 9.3

Status Task completed successfully.


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Mar 5, 2009Mar 5, 2009 16

Bathymetry pointsShoals and Islands


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Image Processing - SPOT


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Mar 5, 2009

Extent ofProject Area

28r 25 31 48 r 3118

24 r 15 1 51r 35 43


14 Km

11 KM

154 Sq.Km

Extent of QuickBird/IKONOS image coverage

Total Area = 25256 Sq.Km

Total Grid = 164


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Mar 5, 2009

SRTM DEMSRTM DEM

y SRTM data downloaded from :http://srtm.csi.cgiar.org/SELECTION/inputCoord.asp

y SRTM 3 Arc Second (90 Meter) DEM

y Data format : 1. GeoTiff 2. Arc Grid

y Total Number of files : 23 (covering entireKSA)

y Other relevant information

Projection : unknown

Data type : Signed 32 bit

Number of layers: 1



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Mar 5, 2009

Mosaicing of SRTM DEM in ArcMapMosaicing of SRTM DEM in ArcMap

ArcToolbox>Data Management Tools > Raster > Raster Dataset > Mosaic To New Raster


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Orthometric Height CalculationOrthometric Height Calculation

y Orthometric height is calculated from Ellipsoidal and Geoidal height

y Ellipsoidal heights of 32 locations are collected from the files given by MinistryofMunicipal and Rural Affairs (MOMRA)

y Geoidal Heights are calculated as follows :

y Software used : EGM2008 Harmonic Synthesis Program - Hsynth-WGS84.exe(Fortran-command based) Available in :http://earth-info.nga.mil/GandG/wgs84/gravitymod/egm2008/egm08_wgs84. html

y Requirements :

Input file containing Latitude and Longitudes in .txt format (with one tab space)

Hsynth-WGS84.exe and Input text file must be stored inside the same folder

Output file contains X,Y and Geoidal height , will be then stored to the same folder.



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Interfaces for locating GCPsInterfaces for locating GCPs

Location basedinformation system

Working : While clicking on thelocations in the

spatial window gives theinformation of the GCPPoint inpdf format .

Other options available:panZoomFull Extent

Map

Next Phase : To includemerged topographic sheet andSPOT image in the backgroundto make the interface moreinformative.



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Mar 5, 2009

MOMRA VectorMOMRA Vector

Data CoverageData Coverage

y Area coverage

y 1: 20,000 = 10370.15 Sq.Km

y 1: 25,000 = 1483.80 Sq.Km



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Mar 5, 2009

Visual Basic 6.0

Mapobjects 2.2

Split by Attribute Tool for ArcMap

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Environmental and Geomatics Services

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