New Developments at Landmap

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New Developments at LandmapCreating Web Map
Services to Enhance Geodata Interoperability

• Kamie Kitmitto
• Gail Millin

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Outline

• Satellite Image Data Service Landmap Products
• New Envisat data ASAR Image Mode, Alternating
  Polarisation and Wide Swath
• Other new data products
• Geodata Interoperability Project
• New Web Mapping Interface for Landmap
• Image Streaming
• Image Processing Course

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MIMAS Organisation
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Satellite Image Data Service

• Supports a large geographic data resource
• Require CHEST license and payment of a JISC data
  hosting charge.
• Web-based access to a range of satellite imagery
  for the British Isles for research and teaching
  purposes
• Landmap Datasets
• Infoterra Satellite Data Archive
• Mediterranean data
• New ENVISAT Datasets
• Image processing course
• New download interface to access the Landmap data
  products.

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Landmap

• Orthorectified satellite images from four
  satellites
• Landsat5
• Landsat7
• SPOT
• ERS
• Also Available -
• Digital Elevation Model of the British Isles
• KGPS survey,
• Projected SRTM data

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Landsat band combinations for different
applications of satellite data
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Summary of Data Products
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New ENVISAT Data Advanced Synthetic Aperture
Radar
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New ENVISAT Data Advanced Synthetic Aperture
Radar

• ASAR imagery, British Isles coverage, GB National
  Grid and Irish Grid Coordinates.
• Provided in WMS and WCS services for
• Image Mode (IS2 Swath),
• Alternating Polarisation,
• Wide Swath
• Future Work
• Provide data at different times of the year
  seasonality
• Create Coherence Colour Composite Multi Images
  and interferograms.
• Provide on-line learning support materials for
  ASAR data

Image Mode Coherence Colour Composite
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New Data Products Coming Soon

• LiDAR sample data available soon!

Disaster Monitoring Constellation
Licenses to be finalised with the suppliers
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Interoperability Project
Aim to prove the feasibility of delivering
geo-spatial data using OGC standards for GIS web
services Primary objective was to develop a set
of demonstrator applications (urban/planimetric
use case) which promote interoperability between
distributed data sources at EDINA, UCL ICEDS
MIMAS Project funded by JISC
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Data Preparation

• Landsat 5, Landsat 7 (Pan and fused), SPOT,
  Ortholandsat 5/7 and Hillshade from Landmap
  http//www.landmap.ac.uk
• Pyramiding 25m, 50m and 100m resolution for
  ortholandsat 5 and 7 stretched mosaics.
• Tiling Shapefile index created for tiled data,
  improve server response time by requesting tiles
  that fall into the bounding box defined by the
  user.
• Band Combinations Landsat 5 mosaic bands 7,4,2
  highlight urban areas in pinkish purple colour
  for the urban use case.

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OGC Services
Open Geospatial Consortium (OGC) - a non-profit,
international, voluntary standards organization
that is leading the development of standards for
geospatial services Their aim is to advance
geo-processing interoperability across the GIS
industry WMS web application which provides a
portrayal of geographic data which is stored on
the server. WCS defines how to provide
satellite data over the internet. This differs
from WMS as actual data values are sent
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MapServer
MapServer is a freely available, open source
development environment, offering support of WMS
and WCS http//mapserver.gis.umn.edu/ Requires a
variety of supporting libraries e.g. - PROJ 4
for on-the-fly projection - Geospatial Data
Abstraction Library (GDAL) a translator
library for raster data MIMAS installed
MapServer 4.4.1 on Windows Server 2003 using IIS
6.0
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MapServer ConfigurationMapfile Structure
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MapFile - WMS Layer Element
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MapServer WMS GetCapabilities Request

• GetCapabilities request
• http//camber.mc.man.ac.uk/cgi-bin/mapserv.exe?map
  c\Inetpub\wwwroot\MIMAS\wms_mimas_mosaic.mapREQ
  UESTGetCapabilities
• Discover information about a WMS,
• What layers are contained in the WMS,
• Projection the data is being served in
• Metadata information
• Access constraints
• Contact information

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MapServer WMS GetMap Request

• http//camber.mc.man.ac.uk/cgi-bin/mapserv.exe?map
  c\Inetpub\wwwroot\MIMAS\wms_mimas_mosaic.mapVER
  SION1.1.1REQUESTGetMapSRSEPSG27700BBOX0,0,
  700005,1050000WIDTH700HEIGHT700LAYERSLandsat
  7Mosaic15mFORMATimage/jpeg
• As part of the interoperability project
• GetMap requests have been produced for
• - Orthospot mosaic,
• - Landsat 7 15m 25m mosaics,
• - Landsat 5 mosaics,
• - Ortholandsat 5 and 7 stretched
• mosaics
• TIFF and ECW format
• .

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MapFile WCS Configuration
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MapServer WCS GetCoverage Request

• When using the below URL a download dialogue box
  will appear and will prompt the user to save the
  file.
• http//camber.mc.man.ac.uk/cgi-bin/mapserv.exe?ma
  pc\Inetpub\wwwroot\MIMAS\wcs_mimas_mosaic.mapSE
  RVICEWCSREQUESTGetCoverageCoverageLandsat7Pan
  BBOX0,0,700005,1050000CRSEPSG27700RESX25RE
  SY25FORMATecw
• The data can then be viewed and used in an image
  processing or GIS package e.g. ERDAS Imagine and
  ER Mapper.

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ER Mappers RightWebMap Planimetric Use Case
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Chameleon 2.0 Urban Use Case
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Project Outcomes

• A range of OGC based web services (WMSWFSWCS)
  (MIMAS, UCL, EDINA and NERC)
• A basic annotation web service (XIMA) (CCG, Leeds
  University)
• A series of demonstrator clients. The clients
  illustrate
• Access to data
• A teaching focused use case (Urban Expansion)
• A research focused use case (Planimetric - based
  on dynamic image registration using web services)
• A report on the utility and issues surrounding
  implementation of open standards for geospatial
  data within JISC, including an assessment of
  security and access authorisation issues

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New Interactive Mapping Interface!
Powered by MapServer Customised Chameleon 2.0
Interface
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Image Streaming ER Mappers Image Web Server

• Another product for serving imagery is Image Web
  Server 7.0
• Image Web Server provides ECW high speed
  streaming for all Landmap imagery and also serves
  OGC WMS
• ECW streamed imagery can be accessed at
  http//camber.mc.man.ac.uk/wms/image_streaming.htm
  
• GetCapabilities request for IWS is
  http//camber.mc.man.ac.uk/ecwp/ecw_wms.dll?reques
  tGetCapabilitiesservicewms

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New Image Streaming Interface!View New Envisat,
Landsat, DEM and SPOT imagery real time roam and
zoom capability.
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Learning MaterialsNew Image Processing Courses

• Modules include -
• Information Extraction
• Spectral Mapping
• Georeferencing
• Structural Mapping
• Vegetation Mapping
• Land Cover Classification
• Meterology
• Sea-Surface Temperature Mapping
• Coastal Mapping
• Integration with GIS
• Mineral Exploitation

• Adapted for -
• RSI ENVI
• ERDAS Imagine
• PCI
• Idrisi Kilimanjaro
• Visit - www.landmap.ac.uk/ipc
• Requirements -
• Athens Username Password
• Attend a subscribed institution

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Service FeedbackEmail - spatial_at_mimas.ac.uk
Questionnaire - www.landmap.ac.uk/questionnaire/i
ndex.html

• Comments
• Website Input
• Request Data
• Course Feeback
• Users views
• Future Developments

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