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Overview


JetStream is a web data serving solution based on a variety of Open Data Access Protocols. With JetStream's implementation a client uses a standard web-browser to search for datasets.

The JetStream system allows the client to choose subsets of data (to minimise download). JetStreamthen extracts the data, and zips it for further compression. After receiving an email the client then initiates a standard file-transfer to download the data. On the fly bitmap representations of the underlying geophysical data are presented via the web, so you can preview your selections until you're happy with your choice. You can then request actual data using JetStreamwith NO loss of precision.


Deploying within existing web server


The software provided by Intrepid Geophysics consists of a customisation of their JetStream base product offering.

The JetStream base product functionality consists of an intranet based software application which provides the following functionality:
1. cataloguing of spatial entities, datasets and supporting documentation (e.g. reports);
2. visualisation of the above entities via map based interface based on standard web browsers;
3. query and filtering functionality to locate datasets within a user defined area of interest;
4. query and filtering functionality to locate datasets based on popular SQL constructs (e.g DATEADDED BETWEEN 1/1/2010 AND 1/1/2011, SURVEY equals ARIZONA etc);
5. data retrieval of the filtered datasets based on user requirements
6. web client is OGC compliant interface supporting OGC services such as WFS and WMS.
7. interactive querying of meta data about dataset through popups.





Software Architecture.


The Jetstream solution is made from the following component technologies

  • Intrepid Geophysics proprietary software applications and libraries for handling, processing and management of large geophysical datasets (Intrepid Modules – projconv, subset, export, gridop plus Native Intrepid Libraries). Upon request more modules (dynamic gridding, dynamic map making, dynamic geophysical filtering etc) can be added.
  • Java servlet enabled web service technologies such as Apache Tomcat or Microsoft IIS
  • Intrepid Geophysics proprietary java based servlets which manage the process required to create the zip file containing the data as requested by the end user. (Jetstream Servlets)
  • Intrepid Geophysics open source java based Jetstream Java API that allows third party software or web developer to intact with the jetstream servets.
  • Intrepid Geophysics sourced java based customization of website workflows (Java Server Pages)
  • Web content containing html , javascript, and jsp. This ranges of technologies provides dynamic web pages that allows the end user to experience an interactive web experience.
  • Relational database management systems such as PostgreSQL
  • OpenLayers based infrastructure interacting with WMS and WFS sources as well as locally sourced kml files, jpg images, or shape files.
  • MapServer environment for building spatially-enabled internet applications.



Thin client layout



Back Office Module


Jetstream back office module allows administrator of the Jetstream system to perform numerous administrative tasks such as

  1. Administer the current job queue.
  2. Look at active running jobs.
  3. Look at completed jobs.
  4. Generate daily, monthly, and yearly usage reports on who has downloaded what kind of data from the system


Data management

ISI Editor to interactively catalog data


The ISI tool facilitates the process of Cataloging data for Jetstream. ISI editor also allows to catalog documents(.doc,.zip,.pdf files). For example you have got a grid and a accompanying document. You can catalog the document using the location information from the grid.


Supported Formats


Jetstream supports following file formats.


Line and Point Data

Format 

Extension 

Subset 

Catalogue 

AGSO Ascii Argus


Yes
AGSO Binary Argus


Yes
AGSO BinaryBasos


Yes
AGSO RAF
.raf

Yes
Ascii Columns


Yes
Ascii Line XYZ
.xyz

Yes
SEGY
.segy
Yes
Yes
Geosoft GDB
.gdb
Yes
Yes
Geosolutions
.bdb

Yes
Picodas
.tNN

Yes
Pico Envirotec
.tNN

Yes
Arcview Shape
.shp
Yes
Yes
GR_820


Yes
ECS GBCBASE


Yes
MapInfo MIF
.mif
Yes
Yes
Relational Database
(Postgres, mysql, Oracle)

Yes
Yes
Geosoft PLY
.ply
Yes
Yes
GSF
.gsf

Yes


2D Geophysical Grid

Format 

Extension 

Subset 

Catalog 

AGSO Binary Grid
.grd

Yes
AGSO Argus Grid
.grd

Yes
Ascii Image


Yes
Ascii Image XYZ


Yes
Binary Image ERM
.ers
Yes
Yes
Encom Image


Yes
ECS GRDUTE


Yes
ECS Gridfile


Yes
GXF


Yes
GIPSI Grid


Yes
Geosoft Grid
.grd
Yes
Yes
Geosoft Grid (Integer)
.grd
Yes
Yes
Geopak Grid


Yes
Geosolutions Grid


Yes
GeoTIFF Grid
.tif
Yes
Yes
GMT (netCDF) Grid
.nc,.cdf

Yes
LCT Binary Image


Yes
USGS Image


Yes
Zmap Grid
.zmap

Yes
ASEG GXF
.gxf

Yes
USGS DEM Grid


Yes
Fledermaus


Yes
HGT
.hgt
Yes
Yes


3D Meshes

Format 

Extension 

Subset 

Catalogue 

DXF
.dxf

Yes
VOXELGEO


Yes
Vulcan
.00t

Yes
TSURF
.ts

Yes
BREP
.brep

Yes


3D Voxets

Format 

Extension 

Subset 

Catalogue 

GoCad Ascii
.vo

Yes
GoCad Binary
.vo

Yes
UBC Ascii


Yes
Vox Ascii
.vox

Yes
Noddy Ascii
.GOO

Yes


Boreholes

Format 

Extension 

Subset 

Catalogue 

GeoSciML
.xml

Yes (Demonstrated in GSI Jetstream Site)
Ascii
.csv

No
GDM
(French Geological Survey Format)


No