Delhi State Spatial Data Infrastructure

By

Brig Girish Kumar

Project Director

Delhi State Spatial Data Infrastructure

Structure

• DSSDI Project

• DSSDI Metadata

• Participation of DSSDI in India Geo Portal

• OGC Compliant Metadata

What is NSDI?

• The NSDI is an overarching

framework for the existing

agencies with the authority to

mandate constituent

agencies to commit their

data sets and generate new

data on the basis of user

needs

To provide a “ single window ” for spatial data access through digital technologies Ensure standardisation of data-sets Avoid duplication of data-sets Provide for inter-agency co-operation

The NSDI Vision

National infrastructure for the availability of and access to organised spatial data

Use of the infrastructure at Community, Local, State, Regional and National levels for sustained economic growth

NSDI Objectives

Develop and maintain standard digital collection of data

Develop common solutions for Discovery, Access and Use of spatial data in response to the needs of diverse user groups

Increase the awareness & understanding of the vision, concepts and benefits of the NSDI

DSSDI PROJECT

COMPONENT A:

GPS Control, Aero Triangulation /Digital Elevation Model/Orthophoto

COMPONENT C :

PRIMARY DATA CAPTURE

3D Mapping, Property Survey, Utility Survey, UIS & LIS

COMPONENT B : SYSTEM DESIGN/

INTEGRATION

Database schema, 10 Monitoring Centers,

2 Control Centers, DSSDI Geoportal, Training

COMPONENT D :

3D GIS

3D Topology, Texturing, 3D Visualisation, GIS

Application

SPV(GeoSpatial Delhi Ltd)

SPV(GeoSpatial Delhi Ltd)

COMPONENTS OF DSSDI

MCD

DDA

NDMC

Revenue

DJB

DTL

BSES Rajdhani

BSES Yamuna

NDPL

IGL

Fire Service

DTC

PWD

Delhi Police Election Commission

Health & Family Welfare

Education

DPCC

DTTDC

Census Dept.

DSIIDC

Irrigation &

Flood Control

Dept. of Labour

DMRC

DIMTS

MTNL

Trade & Taxes

Excise & Entertainment & Luxury Tax

Feasibility Study

Planning & Mobilization

Requirement Analysis

Gap Analysis

Design & Prototyping

Development

Testing

Implementation

Evaluation

Deployment

DSSDI GeoPortal

(Internet/ Intranet)

Application Development Process in DSSDI

Line Departments of

GNCTD

Control Centres

Monitoring Centres

A B C D E F

G H I J K L

M N O P Q R

S T U V W X

01 05 09 13

02 06 10 14

03 07 11 15

04 08 12 16

A B C D E

F G H I J

K L M N O

P Q R S T

U V W X Y

01 06 11 16 21

02 07 12 17 22

03 08 13 18 23

04 09 14 19 24

05 10 15 20 25

NW NE

SW SE

G 43 (1:1MILLION)72°

28°78°

28°

24°72° 78°

24°

72° 73°25°

24°

72°

24°

73°

25°

72°72°15’

72° 15’

24°15’

24°

72° 15’24°

72°

24°15’72° 72° 15’

24°15’

24°

72° 15’

24°

72°72°

24° 03’

24°72° 72° 03’

24° 03’

72° 03’

24°

G 43S04U (1:10,000)

G 43S04 (1:50,000)

G 43S (1:250,000)

G43S04U05 ( 1:2,000)

DSSDI – Database View

1. Boundary2. Building3. Transportation4. Utility5. Land Use and Land

Cover6. Cadastre7. Hydrography8. Hypsography9. Image10. Framework

Database Categories

Metadata Tables – NSDI Standards

DSSDISpatialframeworkMapSheetCodeNWCornerLongNWCornerLatNECornerLongNECornerLatSWCornerLongSWCornerLatSECornerLongSECornerLat

DSSDIDistrictDistCodeStateCodeDisNameMapSheetCode

User Selects “District” Name

DSSDIStateStateCodeStateNameDisNameMapSheetCode

LayersCatalougeMapSheetCodeLayerCodeLayerStatusPAccLayer_HorQua_Eva_M_HorTAccLayerQua_Eva_M_TaccPAccLayer_VerQua_Eva_M_VerLayerPixelLayerLinesLayerBandsBrowseLayerCostMapSheetAccessMapSheetSurveyYearDigitisationYearLastUpdateYearDSSDIDateLayer

DSSDILayersLayerCodeAgencyCodeLayerNameLayerTypeLayerImagePixelSizeLayerImageFormatLayerDescLayerCitationOperatingSystemLayerEntityLayerSpreadLayerClassificationLayerClassificationDescAccessLayerCostLayerOrderLayerLayerSymbolSetLayerSymbolDescMapBaseSystemMapCodeMapProjectionMapDatumCategoryCode

DSSDICategoryCategoryCodeCategoryName

DSSDILayerEntityAttCodeAttributeUpdateDate

DSSDINonSpatialframeworkMapCodeNWCornerLongNWCornerLatNECornerLongNECornerLatSWCornerLongSWCornerLatSECornerLongSECornerLat

DSSDIAgnecyAgencyCodeAgencyNameAgencyAcronymAgencyDSSDIMgrAgencyAddress1AgencyAddress2AgencyAddress3AgencyCityAgencyDSSDIMgrPhoneAgencyDSSDIMgrFaxAgencyDSSDIMgrEmailAgencyWebsiteDSSDIPoints

LocPtCodeLocPtNameMapSheetCode

DSSDI - Metadata Search Engine

DSSDI - Metadata Search Engine

Participation to

India GeoPortal

INDIA GEOPORTAL

Login as ‘DSSDI’ user

Export Layer Metadata

Registered WMS Service*

Preview

Add to Map

* Conditions apply Only selected layers cleared for dissemination in open domain.

Metadata Updation-Cases(1) Consider a geographic data provider generating vector

mapping data for three Administrative areas (A, B and C).

Initially the vector mapping was generated using a common series of paper maps, which were processed in the same way into a vector format.

The bulk of the metadata for this initial data could be carried at a single level, (Dataset series).

This metadata would describe the quality, citation, source, processing, of the data for the three administrative areas.

So, the metadata is exclusively at Dataset Series level.

Metadata entity set (OGC Compliant)

IdentificationCitation and responsible partyExtentConstraintsData qualityMaintenanceSpatial representationReference systemContentPortrayal catalogueDistribution

Metadata entity set (NSDI Standard)

NSDILayerNSDICategoryNSDILayerEntityNSDILayerCatalougeNSDISpatFrameMap

Metadata Revision-Cases

(2) Alternate vector mapping of Administrative area A (South West District) becomes available.

The metadata would then be extended for Administrative area A, to describe the new quality date values.

These values would supersede those given for the Dataset series, but only for Administrative area A.

The metadata for B and C would remain unchanged. This new metadata would be recorded at Dataset level.

Metadata entity set (OGC Compliant)

Dataset - Administrative area ADataset IdentificationCitation and Responsible PartyExtent

Metadata entity set (NSDI Standard)

NSDILayerNSDILayerEntity

(3) Eventually further data becomes available for Administrative area A (South West District), with a complete re-survey of The road network.

Again this implies new metadata for the affected feature types. This metadata would be carried at Feature type level for Administrative area A. All other metadata relating to other feature types remains unaffected.

Only the Metadata for roads in Administrative area A is modified. This road metadata is recorded at Feature type level.

Metadata Revision-Cases

Metadata entity set (OGC Compliant)

Dataset – Administrative area ADataset IdentificationCitation and Responsible PartyExtentFeature type - Administrative area A - Road networkDataset IdentificationCitation and Responsible Party

Metadata entity set (NSDI Standard)

NSDILayerNSDILayerEntity

DSSDI Portal is in development stage DSSDI is beyond meta data

We seek your valuable guidance and advice in making DSSDI as one of the best models for India

Pl send your views/opinion at

pd@dssdi.in