National Computational Infrastructure

NCI

Earth Observation

 

Overview of the collection information.
Title Size Project Code Global File System THREDDS Other Services
Landsat 700TB rs0 gdata2 Yes
MODIS 525TB u39 gdata2 Yes
Himawari 353TB rr5 gdata2 Yes
Ocean Maps 143TB rr6 gdata1 Yes
Synthetic Aperture Radar 104TB fj7 gdata2 Yes
Digitised Aerial Survey Photography 61TB fk2 gdata2 No
WOfs 15TB fk4 gdata1 Yes
Australian Marine Video and Imagery 6TB fk1 gdata1 Yes
Soil moisture 2TB fj4 gdata1 No
ASTER 1TB wx7 gdata1 Yes
Auscover 0TB pj6 ? No

Landsat

The directory is being reorganised. The content of this collection is to be determined.

Australian Moderate Resolution Satellite Products

These data collections comprise time series from satellite sensors that provide complete continental coverage approximately daily (or at least every few days). These sensors typically have a spatial resolution of 0.5 to 1km and are carried on polar orbiting satellites. Future geostationary satellite sensors are now approaching this spatial resolution also, and provide complete disc coverage many times daily.

The data collections can include multiple levels of processing from a single sensor. For example for several sensors the raw data packets received from the satellite downlink are stored. These may then be accompanied by intermediate level products (so-called L1B: calibrated, geolocated top-of-atmosphere radiances), as well as higher level geophysical products and/or a variety of interpreted or classified indices. Additionally, a range of ancillary data required for processing the data, such as satellite ephemerides, or atmospheric or surface state files may be archived together with some collections.

The data sets collectively underpin a range of national products that are used by CSIRO, TERN, or IMOS. The sensors include NOAA/AVHRR (Noaa-09 through Noaa-19), SeaWIFS, MERIS, MODIS Terra and Aqua. NPP/VIIRS. Potential future inclusions are ATSR* and HIMAWARI-8.

Remote and Insitu Observations products for Earth system modelling

Collection of remotely observed and insitu observed data products from the Australian Bureau of Meteorology (Observation and Infrastructure Division, the National Meteorological and Oceanographic Centre (NMOC) and The Centre for Australian Weather and Climate Research) to support earth system modelling and ocean/marine modelling.

Within the data collection is geostationary satellite data leading to Himawari-8 data as well as MODIS and AVHRR data sets for land surface and marine environments. The data collection represents the Bureau’s daily operational observations support weather and climate model analysis and verification.

Data and metadata based on a variety of formats such as netCDF and Climate-Forecast (CF) v1.6 conventions with support for Unidata data discovery conventions, WMO BUFR format, and HDF.

More information about this collection can be found at http://www.bom.gov.au/australia/satellite/

Ocean and Marine Modelling and Forecast Products

Collection of ocean circulation and marine wave and inudation analysis and forecast model output from National Meteorological and Oceanographic Centre and CAWCR using the various modelling systems for a variety of domains such as global, regional, and coastal. The data collection represents the Bureau’s daily forecast of ocean circulation, wave analysis and model output including research reanalysis of global, regional and coastal ocean circulation and marine wave environments. Additionally the collection contains the tsunami wave propogation scenarios and model output.

The analysis data is outputted from the BLUElink Ocean Data Assimilation Software (BODAS), the forecast data from the NOAA MOM4 software and Ocean Model And Prediction System (OceanMAPS), and the wave model output from the Wave Watch 3 software. The tsunami model scenarios are outputted from NOAA’s MOST modelling software.

Synthetic Aperture Radar Data

GA is the custodian of a 20 year archive of Synthetic Aperture Radar (SAR) data covering the Australian continent that can be used to observe cm-scale ground motion and surface texture associated rock type, changes in vegetation or floods. SAR is an airborne or spaceborne side-looking radar system that actively transmits microwave radiation towards earth. The resulting imagery is very different from optical data and can be collected regardless of weather conditions and at any time of day. Images pairs can be used for interferometry to accurately determine surface elevation and to construct digital elevation models or to measure cm-scale changes in surface position. Alternatively, the amplitude and polarity of single images can be used to characterise surface textures for the purpose of identifying types and or changes in surface materials. The SAR sensors for this collection are ESA’s two C-band European Remote Sensing (ERS) satellites, ERS1 (30/07/1991-10/03/2000) and ERS2 (13/07/1995-05/09/2011). GA plans to add data from several of the upcoming missions (at least five are planned during the next five years) providing continuing coverage of Australia. Ongoing processing of the SAR data will produce measurements of ground motion that will be incorporated into the data collection.

The website for general info is: http://www.ga.gov.au/scientific-topics/positioning-navigation/geodesy/geodetic-techniques/interferometric-synthetic-aperture-radar

Digitised Australian Aerial Survey Photography Collection

The Aerial Survey Photography Records consist of more than 11,000 film negatives as well as derivative contract prints and diapositives. These records of the Australian landscape were created by Geoscience Australia and its predecessor agencies such as the Australian Surveying and Land Information Group, the Australian Survey Office and the Division of National Mapping. The records were captured during the period c.1928-1993 and have been used as the basis for the Commonwealth government topographic map production as well as providing an opportunity to track environmental changes in the landscape over an extensive period of time. Antarctic films are also included in the collection. The entire collection was transferred to National Archives Australia in December 2010.

More information about this collection can be found at http://www.ga.gov.au/scientific-topics/earth-obs/accessing-satellite-imagery/aerial-photography

Models of Land and Water Dynamics from Space Data Collection

TBD

Satellite Soil Moisture Products Collection

This collection consolidates the wide range of satellite-derived soil moisture (SM) products, which span approximately 30 years from a range data providers, into a single repository for Australian research community to access. Examples of satellite SM sensors include, from passive radiometry, SSMI, TMI, AMSR-E, AMSR2, SMOS, and from active scatterometry, ASAR, ERS, ASCAT, WindScat. The planned SMAP mission (scheduled for launch in Nov 2014) will be the first dedicated soil moisture sensing mission to combine both active and passive sources for high resolution (~10 km) mapping of soil moisture for the globe. The driver for consolidating the multiple time series of SM products is their demonstrated capacity to constrain land surface models, particularly their representation of water in the soil column, which leads to improved root-zone soil moisture assessment, latent heat flux estimation, and partitioning of rainfall into infiltration and surface runoff.

National ASTER Maps of Australi

This is the parent datafile of a dataset that comprises a set of 14+ geoscience products made up of mosaiced ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) scenes across Australia. The individual geoscience products are a combination of bands and band ratios to highlight different mineral groups and parameters including: False colour composite CSIRO Landsat TM Regolith Ratios Green vegetation content Ferric oxide content Ferric oxide composition Ferrous iron index Opaque index AlOH group content AlOH group composition Kaolin group index FeOH group content MgOH group content MgOH group composition Ferrous iron content in MgOH/carbonate Surface mineral group distribution (relative abundance and composition).

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