CEOS WGISS Subgroups Meeting
London, 11-14 April 2000
(Edward.King@eoc.csiro.au)
Introduction
The Network, Access and Data subgroup meetings were held at University College
London over three and a half days from 11-14 April.
The meetings were well attended by most of the usual participants. A
significant difference from previous meetings (that I have attended) however
was the presence of representatives from Global Observation of Forest Cover
(GOFC) and the Disaster Management Support Group (DMSG) teams. Their
attendance was part of a thrust to establish real links between the WGISS
SGs and task teams (TT) to transfer ISS expertise into deliverables for science
projects. This activity seems to have grown out of the 'Nakodo' process
in which links were made between GOIN projects and WGISS TTs.
These notes are not definitive. They were compiled by me as best Icould
during the meetings. Most presentations I attended are included,though
I did not attend any of the Network or other meetings that ran inparallel
to the Access SG meetings so these are not covered here. Where handoutsare
mentioned in the notes, you can get hardcopies from me.
Quick links:
-
Day 1: OpenGIS, GOIN, Networks, Bangkok meeting, GOFC, DMSG, WGISS
TT overview
- Day 2: WEB TT, Guidelines
TT, Catalog Services
- Day 3: IDN,
CINTEX, Demos, CIP
- Day 4: Global
Mapping , GOFC Summup, WGISS Future
Day 1, Tuesday, 11 April
Phillip Sargent (LaserScan) - The OpenGIS Consortium
- The Open GIS consortium liases with OMG, ISO SQL, ISO TC211
- Opportunity in Web-based mapping
- disaster relief
- global and national geospatial info. infrastructures (digital earth,
NSDI,GSDI)
- military C3I
- Many others
- Open request for proposals method
- Realities and challenges
- bandwidth
- security
- lack of display integration capability
- limited methods to locate sources of data
- lack of interoperability
- challenges - interoperability
- Co-funded research and development
- several coexisting but non-interoperating web mapping systems.
- Example - http://terraserver.microsoft.com
- http://www.mapquest.com
- http://www.epa.gov/enviro/enviromapper.html
- in principle these should be interoperable.
- Testbed:
- goal - establish standard interface specs, that will enable web mapping
- method
- http://www.opengis.org/wmt
- interoperability important - test, develop and transfer
- Timeline:
- aut 98 - initial request for info
- Jun 99 contracts awarded
- Sept 99 demonstration
- Dec 99 standards proposals public
- Mar 2000 USL pilot (exploitation)
- April 00 WMS & GML standards
- MAy 00 WMT 2 definition phase (wmt=web mapping testbed)
- Sponsors/players - government & industry
- Initial analysis:
- user interacts with a client
- map servers provide access to maps only
- distributed - a client can overly output from multiple servers
- interoperability is important
- A map server:
- specifies maps appearance with named layers and styles
- must generate maps to a precise spec.
- hides origin of the geospatial data
- whether vector based, raster or near live
- must be able to describe its own capabilities
- may be able to transform data to generate a map.
- may permit 'drill down' to access feature level data
- Categories of client:
- web browser - suitable for casual/infrequent users
- downloaded client - suitable for deployment within an organisation
- desktop application
- Three categories of data:
- image (rectangle)
- vector
- geospatial data - data needs to be rendered locally
- picture case - most work is on server, display only on client (browser)
thin client
- graphic element case - some rendering hasppens on the client - medium
client
- data case - client does most of the work - thick client
- all are meant to interoperate
- lesson #1
- unlike most internet/web web mapping in NOT about hyperlinks
- Map server interfaces:
- get map
- get feature info
- get capabilities
- get map:
- spatial context
- layers
- format (gif etc)
- exception type
- lesson #2
- vector map delivery is not a prime goal
- viewer client is a key concept - it can also be served off the net!
- a services registry (catalogue) is necessary
- layer styles however are specific to each server - there is no standardisation
or consistency. - a lot of work needed here.
- Web mapping - internet trends:
- growing adoption of object-oriented web enabled IT.
- integration of odbms with rdbms
- use of intelligent servers to provide services for embedding maps
within web applications
- implementation with multiuser GIS with object versioning
- servers must be much samarter than browsers.
- A success:
- value of thin client demonstrated
- map servers provide a service, they do not just serve maps
- What next?
- pilot project
- WMT2 -still being scoped, catalogs & feature identifiers
areimportant - presentation Nov 2000
- Stages of internet evolution:
- access to data
- provision of services
- use of federated services
- How do we make such systems pay for themselves? Can't chargemuch
for software - substitutes for complex s/w.
Shin-ichi Sobue - GOIN Transition Status
- GOIN evolution task team report
- Outline of GOIN:
- July 1993 US/Japan
- purpose is to exchange global enviromental data via information networks
- many pilot projects (25) of GOIN under present task teams
- more than 10 SE asian countries now involved - not just bilateral
- needs to affiliate GOIN with other networking entities eg CEOS, APAN
- need find new framework for global GOIN activities
- transition to be completed Nov 2000
- there is synergy between GOIN and IGOS, WGISS, WGCV...
- proposed options:
- collect and summarize EO data user requirements
- provide technical solutions
- let science leaders participate in meetings close by eg CEOS regional
w/shops- same approach as IGOS Pilot Projects (PP)
- continue to have a task team or new org. under CEOS/WGISS framework
to facilitate (poc for new science project).
- continuous demos towards decision makers for the impact of PPs(eg
CEOS plenary).
- need to conclude the recommendation
- WGISS10/11 & SG in Bankok
- present final recommendation to CEOS plenary in Brazil
- demo request to INPE (CEOS chair) at CEOS plenary if necessary.
What is a GOIN project? - "Constructive ambiguity"
US & Intl Networks Update - Jeff Smith (NS vice-chair)
- Next generation internet architecture - DREN, NREN, vBNS, Abilene (2.4
Gbit), Supernet, ESnet - joined
- CA*net3 - 622 Mbit backbone
- APAN - Japan/STARtap(chicago) 100Mbit
- TEN-155 - Europe - soon to go to 622 Mbit (currently 155)
- NORDUnet (Scandinavian)
- SUPER-JAnet
- SURFNet - Netherlands (622 -> 2.4 Gbit)
- RNP in Brazil - mostly 2 Mbit -> 35 Mbuit to STAR tap hopefully
- STAR-TAP & NYC exchange are the two main connection points fortheUS.
- APAN has 100 Mbit to STARtap.
- These are all research/academic networks - they have Acceptable Use
Policies(AUPs).
Hiroshi Ishiguro - APAN Network Update
- a non-profit international consortium
- divided broadly into technology and user areas
- has links to other internationl networks (eg CANET2...)
- JP-Australia 1.5 Mbit
- 4 different types of menbers - primary, associate, liason, affiliate
Andrew Germain - Performance Task Team Report
- many new routes - shift towards specialised networks from commodity
providers
- new tests
- some tests dropped (CSIRO, DLR, INPE, START)
- network topology worldwide discovered via traceroute
Thom Stone (NREN) - Thailand Connectivity for Bankok SG Meetings
- 3rd week of September - 11- 15
- Chulalongkorn University
- Objective is to provide usual connectivity including email, web, connectivity
- tasks:
- allocate bandwidth to the meeting - network resources by Teleglobe
are saturatedin school hours
- coordinate network to wire conference rooms
- address routing issues for demos
- decide on applications to demonstrsate
- 2 Mb APAN link is NOT oversubscribed
- can provide enough bw for conference
- APAN/AIT must agree and provide routing
- Wireless link must be in place
- Lucent WAVElan system - 10 Mb/sec
- acts as wireless E/net bridge
- distance is 1.13 miles
- Uses spread spectrum radio in ISM band
- Will ship from NASA ARC 5/00
- many countries have problem providing adequate service to the lastmile
- creative solutions such as wireless
Jeff Smith - ESDIS Internet 2 Initiative
- ESDIS plans to join its DAACs to the Abilene network as members, NOT
peers.
- shares costs with other government agencies
Shin-ichi Sobue - WGISS/SG In Thailand
- Hosted by NASDA
- locally organised by AIT/SeaSTART RC
- 11-15 Sept 2000
- Chulalongkorn Univ.
- Siam Continental or Novatel near C. U.
- Contact: honda@ait.ac.th
CII Task Team by Osamu Ochiai (NASDA)
- http:www.ceos.org - entry point toCII
- For communication between plenary, subgroup and Task team level.
- Promote CEOS internaal and external information exchanges and communication.
- More efficient procedures for documents
- A forum for more easy communication (more than once a year)
- Document distribution system
- Action item from WGISS 9 - consider search function and cdrom
of CEOS pages
GOFC
Background - Matt Schwaller
- Subgroup meeting in Charlottesville - included partic. of GOIN sgs
- WGISS & Plenary meetings in fall of 99 - est TT for GOIN with the
goal of including GOIN science objectives in CEOS
- Substantial participation of land scientists involved in GOFC
- GOFC is initiative of IGOS
- CEOS identified GOFC as a focus for SGs
- Sep 99 WGISS SGs
- CEOS/GOFC demos
- additional pilot project demos
- followed by a demo at the CEOS plenary
- GOALS for this meeting
- scientific guidance from GOFC and LULUC principals
- Introduction of GOFC/LULUC issues into WGISS SGs
Review of Last Joint SG Meeting - Ken McDonald
- Nakodo meeting - GOIN/IGOS marriage with SGs
- GOIN network SG should join WGISS N/S
- GOIN Atm/Ocean SG has commonality with IGOS ocean biology pilot project
&shouldwork together
- GOIN land SG....
Chris Justice - IGOS/GOFC Overview
- Need for an IGOS (Integrated Global Observing Strategy):
- framework for integrating requirements for users so providers can
respond
- reduce duplication
- identify key deficiencies
- + others
- IGOS themes:
- domain themes - ocean, atmosphere, terrestrial, wethet, coastal
- cross-cutting themes....
- GOFC 98-95 - pilot until then, operational beyond
- Primary themes:
- forest cover characteristics & cover change
- forest biophysical functioning
- forest fire mapping and monitoring
- Validation components
- Data & information system
CEOS Disaster Management Support Group
- Chair - Helen Wood (NOAA)
- support natural and tech. disaster with remote sensing
- eg drought in india
- earthquakes
- fire
- flooding from hurricanes...
- landslides
- oil spills
- volcanic ash clouds
- http://disaster.ceos.org
Want integrated data acquisition - contacts for Acquisition of SatelliteData
Overview of NASA/GOFC Activities - Chris Justice
- NASA interest:
- data info systems - archiving, access, data policy, catalogues
- carbon themes - USGCRP
- resource management - operational use, services, user specified profducts
, requirement definitions
- testing IGOS
- Science:
- Land Cover Land Use Change
- CEOS Cal/Val
- Apply new instruments and capabilities
- Strengthen collaborative regional science networks
- Data:
- WGISS can contribute
- use existing products
- exercise the ECS-DAACS
- further develop ESIPS
- transition to NewDISS
- explore role of OpenGIS consortium
- support for CEOS partners - FAO-FRA L7 data buy
Simon Pinnock - GVM/JRC, Contributions to GOFC
- TREES map - map humid tropical forests - AVHRR
- TREES is branching out to temperate and cold climate forests with more
than just AVHRR
- many data sets on forests
- WFW to analyse fire activity
- WMT setup was very quick
GOFC in SE-Asia
- 7 countries with teams of 4-7 scientists each - abot 70 scientistsin
all
- Malaysia, Thailand, Indonesia, Phillipines, Vietnam, Cambodia, Laos,
Taiwan
- detailed study sites for Cal/Val and LUCC reseacrh
GOFC in SE Asia (continued by someone from the region)
- develop strategy for regional GOFC meetings support
- formulate plans for expanding and engaging
- much work to establish mechanisms for progress
- develop pilot and test projects to deliver data
- pursue CEOS data-bundle concept for SE Asia
Brian McLeod - GOFC/DMSP Activities at CCRS
- GOFC project office:
- provides many services
- staffed by CCRS
- supported by CCRS and CSA
Olivier Arino - ESA GOFC/DMSP Application Projects
- ERS & ENVISAT
- ATSR near real time system
- Rush fire products
- burn scar mapping
- volcanoes - VoMIR
- rapid mapping system for disaster reponse
Ken McDonald - WGISS S/G TT & GOFC
An introduction to TTs for benefit of GOFC people
- Access Subgroup:
- IDN
- CEOS CINTEX & extensions:
- provision of interoperable catalogue system (ICS)
- federation management of CIP & IMS based interoperability
- maintainence of CEOS CIP
- Data:
- global datasets - Dave Hastings (NOAA):
- promote the development of standard global EO data sets
- coordinate & collaborate with other agencies eg ISPRS
- keep CEOS/WGISS members informed on global dataset initiatives
- Archive Management - Gian-Maria Pinna, ESA
- provide a forum for CEOS members to discuss archive managementconceptsand
standards
- investigate & promote the development of an archive low-level
data interchange format
- awareness of standard initiatives will enable data interchange
- Guidlines TT - Nic Snape BNSC/EOS
- oversee on-going maintenance of WGISS guidleines docs
- maintain and provide accss to formal guidelines
- provide resource to CEOS members
- current emphasis on catalogue and format guidelines
- Global Mapping & Visualisation TT - Mike Botts, U. of Alabama
- provide forum for CEOS agencies to exchange information on standards
and approachesthat enable or enhance global mapping and visualisation.
- develop/promote the use of a satellite sensor description format
- permits generic visualisation tools
- emphasis is to develop dynamic mapping tools taking advantage of
WWW
- Joint Access/Data
- WWW TT - Clive Best CEO, JRC
- improve development and coordination of WWW techniques among member
agencies
- infuse WWW techniques into CEOS activities through outreach toexternalgroups
- provide forum for agencies to introduce and discuss web based tech
- http://techbrief.prometeus.org
- tech watch newsletter
- DataServices - George Percival, NASA/SGT
- develop conceptual model of EO needs for interchange, portrayal
& manipulation of data in real time over distributed computing environment
- promote CEOS data services with other standards bodies (ISO TC211,
OpenGIS Consort.)
- Networks
- network performance measurement - Andy Germain, NASA
- Network Security - Dick des Jardins, NASA - dormant
- CEOS Next Generation Prototyping - Dick des Jardins
- Network Resource planning and Organisation - vacant - dormant
- WGISS TT
- CEOS information inrfastructure - Osamu Ochai, NASDA
- CEOS CDrom - Jean-Pierre Antikadis, CNES
- http://wgiss.ceos.org
IDN Splinter Meeting (Lola Olsen)
Documents:
- Minutes from Charlottesville
- Interop. Newsletter No. 9
- Agenda for today
- draft V8 write-a-dif
- write a serf
- GCMD Earth Science Services
- terms relating to hazards/disasters
- guide to Earth Science Service defns
- possible DTD for the Dif
- a sample XML dif
Day 2, Wednesday, 12 April
Web Services TT - R. Suresh
- EOGEO 5 next week - 40 papers, 80+ participants
- Scalable Vector Graphics - SVG
- XML Schema Draft
- Schema and DTD - unlike a DTD, XML schema allows you to specify a data
type for an elemenent or attribute.
- XQL developments - a query language that uses XML as a data model and
itis very similar to XSL patterns.
- Need to build an earth science data exchange supported by CEOS members
and others. Can be modelled after E-commerce activities suchas
E-steel and Auto exchange. What is ESDE? A data supplier and consumerexch.
based on stds XML, WMT, HTTP, CIP, GML, SVG
- potentia l benefits:
- improve search and access
- open & transparent data exchange based on standards.
- support legacy systems
- data interoperability.
- Many standards docs coming out of W3C - probably better because they
keepup with the technology, but can be hard to keep up with! Generally
thoughit avoids the problem of standards failure due to lack of timeliness.
NOTE: Suresh's own summary of this session is at
http://webtech.jrc.it/London-summary.txt
Simon Pinnock - on behalf of Clive Best
- Demo at : http://hgss.jrc.it/opengis
- demo of WMT from Clive Best
- questions about how to handle global data sets which contain vast amounts
of data - how to handle the generalisation
TRFIC - Tropical Rain Forest Information Centre
Delopment of Prototype Web Server GIS Server for HDF-EOS Data - Liping
Di
- HDF-EOS is a standard format for NASA EOSDIS
- make HDF-EOS data easily available with GIS users to greatly increase
utilisation
- 3 data models
- OGC web mapping specification
- define eweb interfaces for interoperability of map assembly &
delivery middleware withinheterogeneous distributed servers
- 3 interfaces
- specification tested in phase 1 of OGC wmt
- objectives
- develop NASA Web GIS server
- approach
- lessons learned:
- time series are not easy to handle
- georeferencing on the fly is not always easy
- getFeatureInfo is not well specified
- large data archives can be problematic
Brian McLeod - CCRS
- Three tier architecture:
- viewer
- server (broker)
- data servers
- Next EOGEO conference
George Percival - CEOS Technologies for GOFC - Catalog Services
- tying catalogues together with CIP, ISITE, Z39.50....
Lola Olsen - XML in GCMD
- Converging on interoperability with XML / preparing DTDs for XML
- why XML:
- buzzword
- expectation of good tools
- expectation of good browser support
- encourages distributed data mgmt
- encourages object oriented.
- XML - includes data tagged with meaningful elements
- DTD defines what is ok - can apply a style sheet
- DIF DTD - cautionary:
- use nesting to advantage
- not well formed = euphemism for WRONG
- case sensitivity
- use of underscores
- decisions on determining "attributes"
- SUNs JAVA XML API
- GCMD integrated this API into MD8
- non-validating SAX parser to load XML dif.
- semantic web
- Berners-Lee - W3C meaning itself embedded in framework of web
- promote XML and resource description
- see http://xml.gsfc.nasa.gov
(astronomical data centre)
Guidelines TT - Nic Snape
- host site for guidleine docs - format, browse, auxilliary and catalogues
- about 1000 hits per month!
- ongoing maint.
- establish hypernews versions
- new version of format guidelines to include HDF
- set up plan for catalogue guidelines update
- http://www.eos.co.uk/ceos-guidelines
Day 3, Thursday,
13 April
IDN Status - Lola Olsen
- Status -full steam ahead, many new features icluding servicepointers,mirroring,
question pages...
- Node reports
- Canada - Brian McLeod: New ceonet, monthly export/import to/fromGCMD. FIF
input is monitored daily and staff followup to ensure quality. Active
program to solicit new difs.
- NASDA - Osamu Ochiai:
- UNEP - Laurent Czaran: problems with Oracle Web-Server. many
newmaps to add - especially of the arctic
- CNES - nothing to say
- DLR - all quiet, more activities planned for 2nd half of this year
- ESA - no-one present
- INPE - Brazil: some success but lots of firewall problems
- Argentina - Hugo: most contributions are Antarctic related.
Currently running MD7.
- EROS Data Centre - Earth Explorer
- http://earthexplorer.usgs.gov
- glis content is being transferred
- runs on oracle
- browse is pre-computed - about 70%, 200kb
- GLIS produces 3800 orders per month
- statistics
- about 100 new difs per month
- about half difs come from NASA but several other big contributors
- Collaboration with other groups - search entrances customised for particular
groups of users
- JCAMD
- G3OS - Global Observing Systems Information Center
- AGROS
- CEOS DMSG
- Levine Lauritson - DMSG Collaboration with WGISS
- users often have poorly defined requirements
- diverse requirements
- requirements specialised
- users speak a different language to remote sensing
- evidently DIFs are not well formed - the content is there but not
well expressed.
- Domain(theme)-based services seem to be quite popular
CINTEX - Yonsook Enloe
- Introductions and self-identifications, review of agenda
- Status of CINTEX
- What do we do?
- interopable catalog systems
- CINTEX federaition management
- maintain CIP
- work with OGC to develop catalog standards and extensions
- provide testbed to prototype new catalogue concepts and techniques
- provide set of reusable s/w to help agencies/organisations develop/install
catalog systems
- V0 server cookbook
- Dial/V0
- Dial/Map server
- DLR's retrieval manageer
- SSSA Infeo system CIP ODBC Gateway
- Isite software (OGC & CIP compatible) - coming up
- current status
- V0 based ICS growing - over 900 collections
- CIP based ICS growing - over 200 collections
- CEOS catalog systems aligned, some connected - what type of coordination
is appropriate (tighter/closer)?
- prototyping OGC catalog service using isite software
- WMT2 participation
- GOFC testbed involvement
- Where are we going?
- OGC catalog system is future vision
- protoype WMT & services catalogue
- testbed for GOFC and other science projects
- GOFC/DMSG Testbed Support
- provide CINTEX reusable software to participants - add new WMTcomponents
- provide OGC catalog prototype
- Levine ? (NOAA) DMSG - repeat of this mornings earlier presentation.
- Summary of Scenarios for WGISS/GOFC - Chris Justice
- GOFC is a test of IGOS
- goals include global change-foreats and carbon, forest resource
management
- forest cover, fire, biophysicsal processes
- regional and global scales
- Major Obstacles to implementation
- data availability - acquisition and operational continuity
- ease of getting and using data
- linking EO data to user's data and in-situ data
- data costs and policies
- real needs from GOFC - WGISS has capability
- availability of data
- multiple sites for search and retrieval
- networks
- domain data services
- high volume browse searching
- on demand customised processing
- multiple projections
- visualisation tools
- combining RS with map and point data
- ways of working together
- PI to PI - bottom up
- attend each ohers meetings
- need for continuity of people
- need to debrief
- put presentations on the web - keep it current
- GOIN style WGISS/GOFC demonstrations
- these are prototypes which establish new capability
- there is a show and tell but primarily to establish operational
capability
- characteristics should include
- contributions directly to GOFC
- demonstrate and utilize WGISS capabilities
- utilize multi-source data -preferably satellite &
in situ
- ....
- CEOS plenary joint presentations/demonstrations
- Upcoming opportunity in Bangkok
- Sept 2000, Bangkok
- build on GOIN/WGISS success
- overlap of regional and CEOS interests
- opportunity to strengthen regional GOFC implementation
- outreach to regional users
- two proposals presented GOFC/DMSG-fire, GOFC land cover
- multiple demos desirable
- what are the demonstration proposals?
- Possibilities
- Fire
- AVHRR - AIT+DARWIN - near real-time
- DMSP - Singapore, AIT/Chula
- Japan
- US - modis
- ESA - rush product
George Percival - IDN/ICS Overlap
- IDN uses centralised database
- ICS has a distributed database but includes browse and order as well
- Both believe in centralised replicate database
CEOS Technologies for GOFC - George Percival
Various Demos
- Bernhard Buckl - DLR EOWeb System -Full blown search, browse and order
system
- Esrin system - very flash browse
- New EOSDIS node in Isreal
- CEONet system - Brian McLeod
- V0 update from Jingli Yang
- also known as EOS/EDG IMS
- 955 data sets can be searched and ordered through the EDG publicclient
- Terra data by April 19 2000
- 9 different kinds of clients
- public (operational)
- hidden (operational)
- 3 ECS (test)
- 3 VATC (test)
- Dial/Federation (on demand)
- total 14 replicate EDG public clients installed worldwide at 8 US
DAACSand international data centres
- total V0 servers worldwide
- EDG V3.0 will be released by April 19 - new features to support Landsat
7, Terra & general functions
- Also some usability improvements - search and order page redesign
+ plusmanyu other improvements
George Percival - CIP/ICS Document Maintainence
- Released docs:
- CIP Release B
- ICS system design
- order options amendment
- Clarification process:
- email to cintex-disc@harp.gsfc.nasa.gov
- G Percival to respond initially and follow up with experts
- resolved clarification posted to ops web site
- 20 items, 10 issues solved before Sept 99, 6 since then, 4 outstanding
- People asking questions really ought to attend the cintex telecons
Ben Burford - CIP Developers Web Site
Ben Burford - Federation Help Desk
Day 4, Friday, 14
April (half day only)
Wyn Cudlip - Global Mapping
- Attempt to map whole world to address global environmental problems
- Trying to persuade partner countries to contribute their holdings
- 6 baseline datasets:
- vector data at 1:1000000
- admin boundaries
- transport
- drainage
- raster at 1km:
- elevation
- vegetation
- land use
- ISCGM - International Steering Comittee on Global Mapping
- http://wwwl.gsi-mc.go.jp/iscgm-sec/index.html
- EC & UNEP proposal to develop global urban dataset - particularly
of interest for city management in developing countries but with application
to developed cities too. CEOS is primary potential partner, with apossible
eye to elevating it to an IGOS project
Jan-Peter Muller - GLOBE, Remote Sensing of Settlements
- Globe DEM published late 1999 on CDROM as a direct result of CEOS
- Nasa shuttle laser altimeter - flew 1995, 1997 - 3 million spot heights
measured
- about .75 rejected because of cloud
- rms error of around 30m
Settlements at night
- mixed signals - can appear rural
- DMSP-OLS 1km global composite
- visible/NIR 0.4-1.1um data
- much more sensitive than MODIS
- combine remote sensing with GIS ancillary data - will be publishedin
ambio
- Very good agreement between lit area as a function of co2 emissions
- can map economic activity
- for the most populous countries the data predicted population
densitywith 90% accuracy
- correlation of road network density with radiance
EOS Terra- global production and validation issues
- land data at 500m
- ocean data at 2
- atmosphere at 4km
- validation issues being addressed by new CEOS task team.
GOFC Week's End Summary - Matt Schwaller
- Progress - phenomenal:
- progress at internet speed since Charlottesville meeting
- GOFC objectives well integrated into the weeks discussion
- from Monday:
- end of week goal - a well defined scientific and technical framework
for the september demos
- a preliminary set of GOFC fire and land cover demos
- a GOFC testbed concept has been defined
- GOIN style demo:
- brings science direction to technical demos
- GOFC testbed - a set of coordinated demos with continuity over time
- testbed demos have persistence but also EVOLVE over iterative
steps
- GOFC Goals/WGISS Contributions:
- data availability - acquisition & operational continuity
- ease of getting and using data - determining availability, accessing
multiplesources, data quality, using multiple formats
- linking EO data to user's data and in-situ data
- data costs and policies
- GOFC has real needs in areas where WGISS has real expertise
- Bankok Testbed/Demos:
- build on GOIN/WGISS demo success
- overlap of regional and CEOS interests
- opportunity to strengthen regional GOFC implementation
- two proposals - GOFC/DMSG-fire and GOFC land cover
- multiple possiblities:
- NASDA mapping grassland fires
- NASA (Skole) SE Asian tropical forests/deforestation
- JRC - fireweb
- Justice - integrated fire products
- CCRS/USGS domestic fire monitoring
- Preliminary meeting plan:
- Day 1 GOFC & CEOS high level overview
- Day 2 GOFC & CEOS testbed demonstrations
- Day 3-5: GOFC & CEOS generally together for technical meetings
but separately on special issues as needed
- GOFC/WGISS coordination needed on concept of parrallel/joint GOFC
regionalworkshop
Shin-ichi Sobue
- GOIN Transition process
- goin-ns -> wgiss NS
- goin land -> GOFC
Peter Churchill
- Futue of WGISS?
- How do GOIN and WGISS come together?
- this week has set the way forward - will change fundamentally the
way forward for WGISS
- GOIN was a one-off
- but it points to how WGISS can work with the science programs
- test-bed:
- access
- data
- catalogue
- network
- test bed concept impact:
- a means to allow scientific programmes to have access to a full
suite of WGISS tools, techniques and data and on the basis to have access
toinformation systems and services
- a means for WGISS to demonstrate and test its tools and techniques
- a major development of the way WGISS works
- NEXT STEPS
- present concept to WGISS in Canberra
- Develop concept, and make the first demonstration of the testbedto
the WGISS s/g meeting in Bangkok in Sept 2000
- formalise concept at WGISS in Ispra in Sept.
- present the Nakodo and test bed concept tot the CEOS plenary in November
2000 in Brasil
Agency Reports
- Tim Smith, USGS
- entire Landstat 7 archive for North America online viaEarthExplorere
- which requires you to log in and then treats you as an individual- ie customised
inventories, pricing, save search results etc.
- includes features to request particular scans in the future
- uses verisign for credit card transaction - online payment et aldelivers
far more customers because they part with theirmoney at once ratherthan having
to be followed up.