Department of Industry, Innovation, Science and Research

Projects supported through Department of Industry, Innovation, Science and Research (DIISR) research grants.

DIISR Australian Space Research Program - Space Science and Innovation funding stream

  • Platform Technologies for Space, Atmosphere and Climate, Australian Space Research Programme (2010 – 2013)

DIISR International Science Linkage Projects

  • GNSS Continuously Operating Reference Stations Network and Its Synergized Disaster Monitoring and Warning Systems for Coal Mining
  • GPS radio occultation data processing and assimilation system for weather forecast
  • Assimilation of GPS Radio Occultation Data with Numerical Weather Prediction System for Climate Monitoring
  • Intelligent gas disaster early-warning, robust emergency response and rescue systems for coal mining based on geospatial information technologies (2008 – 2010)

DIISR Australian Space Research Program - Space Science and Innovation funding stream

Advanced platform technologies will be developed for space-related research, such us in-space tracking and navigation, precise positioning, space weather, atmospheric modelling and climate monitoring.

Grants and funding:

This research project is funded by the Australian Government as part of its Australian Space Research Program (ASRP). The ASRP is a newly established funding initiative that will provide $40 million over four years to support space-related research, education and innovation. This funding will be awarded through competitive, merit-based grants separated into two streams; A – Space Education Development and B – Space Science and Innovation. The project ‘Platform Technologies for Space, Atmosphere and Climate’ was one of only 4 projects to be awarded first round (March 2010) funding in the highly competitive Space Science and Innovation funding stream.

New algorithms and enhanced atmospheric models will be developed in the context of new generation navigation and geo-environmental satellites to enhance Australia’s capabilities in space research. For more information, please visit the Australian Government space portal.

Vision

To enhance Australia's space capabilities by developing integrated, advanced space-based platform technologies in the context of new generation global navigation and geo-environmental satellite systems.

Objectives

The objectives of this research project are to:

  1. Develop advanced algorithms for precise real-time in-space tracking and navigation and precise orbit determination (POD) for the current and future geo-environmental satellites.
  2. Investigate atmospheric mass density models in order to improve reliability and efficiency of space surveillance systems.
  3. Develop models and algorithms to explore North American Aerospace Defence Command (NORAD) Two Line Element (TLE) catalogue of 10,000 space objects for better orbit prediction.
  4. Develop new algorithms and optimisation procedures for high precision ubiquitous positioning and mapping in the context of new generation global navigation satellite systems (GNSS).
  5. Investigate effects of magnetic field, troposphere, stratosphere and ionosphere on electro-magnetic L-band frequency ray paths. This includes developing comprehensive 3-D ray tracing application software packages.
  6. Study atmosphere, ionosphere and space weather through incorporating GNSS and low earth orbit (LEO) Radio Occultation (RO) technology.
  7. Evaluate and assimilate multi-sensor satellite remote sensing data, and develop space-based platform technologies for investigating climate change and climatic hazards.
  8. Improve characterisation of climate of the Australian region based on the new models, algorithms, methodologies and applications software developed under this project.

Description

Next generation Global Navigation Satellite Systems (GNSS) will revolutionise the availability, efficiency and reliability of satellite-based positioning systems. GNSS will become a truly ubiquitous utility for positioning, tracking and navigation, with influences extending to aspects of everyday life. This research will investigate new theories, models and algorithms designed to incorporate multiple constellations and multiple frequency observables from data available from new generation GNSS. In addition, new mathematical models and algorithms will be developed for the accurate modelling of atmosphere mass density using space tracking data. These models and algorithms will then be used for precise orbit determination (POD), predicting satellite orbits and modelling orbits of debris objects. This information will increase the accuracy of monitored space-based measurements and as a consequence will improve atmospheric modelling and space weather forecasting capabilities and risk assessment.

An emerging approach to atmospheric satellite remote sensing, GNSS-Low Earth Orbit (LEO) Radio Occultation (RO), has proven to be an important and robust atmospheric sounding technique. This technique retrieves high accuracy and high vertical resolution data, with an un-biased global coverage. GNSS-LEO RO measurements can be taken over areas that are otherwise dismissed as too difficult to access and have the capacity to produce viable data irrespective of weather condition. The GNSS RO data can be used to improve the absolute accuracy of temperature analyses based on other space-based observations and to improve models of the troposphere, stratosphere and ionosphere. Under this project, advanced algorithms and optimised methodologies will be developed in order to improve the use of and accuracy of GNSS RO data from the Constellation Observing System for Meteorology, Ionosphere and Climate (COSMIC) mission. This will improve the analysis of key atmospheric characteristics such as temperature and moisture. These algorithms and methodologies will be developed with the view that they will be implemented for use in future global satellite missions (e.g. KOMPSAT-5 from Korea, COSMIC-II from Taiwan/USA, radio occultation sounder for atmosphere from Italy and others) and in the proposed development of future Australian satellites.

A new multi-sensor satellite remote sensing/data assimilation approach for extending predictability in numerical weather prediction, climate and tropical cyclone investigations will be aided by use of advanced physical models.

These models will be developed to estimate winds from visible and infrared observations from the geostationary meteorological satellites and active (Envisat, Sea-Winds, ASCAT) and passive microwave (SSM/I, SSMIS) observations from polar-orbiting satellites. This will aid in the determination of temperature and moisture from NOAA, EUMETSAT and NASA’s advanced infra-red and microwave sounding systems (e.g. AIRS/AMSU). This satellite-derived atmospheric sounding data used in conjunction with GNSS RO data will allow for the establishment of high-accuracy climate monitoring.

Climate change and associated hazards such as tropical cyclones, drought, extreme heat and bushfires are serious problems faced by Australia. The insufficient density of ground-based meteorological observation stations (especially in the Southern Hemisphere) and the lack of accurate data over the Earth’s oceans and Polar Regions significantly limits the accuracy and reliability of current climate models. As such it is important to develop and evaluate new observational techniques to gain an improved understanding of climate change in the Australian region. Satellite-based remote sensing provides a low-cost, powerful means of precisely measuring characteristics of the Earth’s environment on a global scale. In this project, it is proposed that research is conducted into opportunities for data acquisition, data processing and model development for space, atmosphere and climate research offered by new generation GNSS and new geo-environmental satellite programs.

To summarise, a suite of satellite-based technology platforms will be developed for the purposes of space tracking, precise positioning and space, atmosphere and climate related research. This research is an important step forward to position Australia to be a key player in the space industry and future space research.

Key people

RMIT University (Leading organisation)

Management

Researchers

  • Dr Robert Norman
  • Dr James Bennett
  • Dr Sue-Lynn Choy
  • Mr Brett Carter
  • Mr Toby Manning
  • Miss Ying Li
  • Mr Erjiang Fu
  • Mr Yubin Yuan
  • Dr Dongju Pen
  • Dr Witold Rohm
  • Dr Suqin Wu
  • Dr Xingwang Yu
  • Mr Congliang Liu

University of New South Wales

  • Professor Chris Rizos
  • Dr Samsung Lim
  • Dr Yong Li

For more information, please visit the University of NSW.

Curtin University of Technology

  • Professor Peter Teunissen
  • Dr Dennis Odijk
  • Dr Andrea Nardo

For more information, please visit the Curtin University of Technology.

Bureau of Meteorology

  • Professor John Le Marshall
  • Professor Yuri Kuleshov
  • Ms Bertie Biadeglgne

For more information, please visit the Bureau of Meteorology.

Electro Optic Systems Space System

  • Dr Jizhang Sang

For more information, please visit the Electro Optic Systems Space System.

GPSat Systems Australia

  • Mr Graeme Hooper

For more information, please visit GPSat Systems Australia.

National Space Organisation of Taiwan

  • Professor Yuei-An Liou

For more information, please visit the National Space Organisiation of Taiwan.

NOAA World Data Centre for Meteorology USA

  • Mr Howard Diamond

For more information, please visit the NOAA World Data Centre for Meteorology USA.

DIISR International Science Linkage Projects

This project uses satellite-based positioning technology to address key issues related to surveying/positioning and disaster monitoring in coal mines.

Coal is the world’s most abundant and widely distributed fossil fuel. Although coal deposits are widely dispersed, over 58% of the world’s recoverable reserves are located across; Australia, China, India and the US. The annual yields of Australian and Chinese coal production are ranked No.4 and No.1 in the world respectively.  Safety and efficiency of mine operations is a critical issue for both Australia and China.

Currently, mine surveying/positioning and disaster monitoring are of paramount importance in relation to the safety and efficiency of mine operations. Conventional coal mining surveying/positioning and monitoring techniques are both time-consuming and costly. Hence, monitoring is usually constrained to localized areas, and there is no way to monitor any regional subsidence/deformation induced by underground mining.

In this project, satellite-based positioning technologies are proposed to address key issues related to mine surveying/positioning and disaster monitoring. The project will investigate the cutting-edge Global Navigation Satellite System (GNSS) Continuously Operating Reference Station’s (CORS) network technologies for coal mining and develop a reliable disaster monitoring and warning platform. Novel theories, methods and technologies, such as usability, stability and integrity of the GNSS CORS network for coal mining, regional deformation monitoring, automatic landslide/ subsidence monitoring, bridge structure kinematic deformation monitoring, and smart decision support system for disaster warnings will be investigated.

Partners

This is a joint research venture between the RMIT University SPACE Research Centre (Formally SPAN) and the China University of Mining and Technology.

This project uses the radio occultation (RO) technique to study the physical properties of the Antarctic atmosphere.

The radio occultation (RO) technique sees electromagnetic signals refracted as they pass through the Earth’s atmosphere. Signals from GPS to Low Earth Orbit (LEO) satellites will be monitored as they pass through the atmosphere to reveal important atmospheric properties such as temperature, pressure, refractivity and relative humidity.

This information will be used in a feasibility study into the use of RO for meteorological and climate analyses over the Antarctic region.

This research aims to investigate long-term weather trends over the Antarctic region and the Southern Hemisphere by assimilating GPS RO measurements into existing NWP models. The limitations of the space-based Earth environmental sensing technique will be investigated and new methodology will be proposed. The methodology will enhance the accuracy and capability of this technique with the aim to improve the current weather prediction models and forecasting accuracy.

The objectives of this project include:

  • To compare GPS RO height profiles of pressure, temperature, water vapour pressure and refractivity with Radiosonde (RS) measurements in the Antarctic region
  • To compare the atmospheric parameters derived from GPS RO technology with radiosonde (RS) measurements as a function of monthly average and to analyse the diurnal and seasonal trends
  • To examine the variation in GPS RO temperature versus pressure measurements over Antarctica and over the surrounding oceans
  • To study the temporal and spatial trends in the characteristics of the Tropopause in association with the Polar Front Jets using GPS RO
  • To investigate the Tropopause height, temperature and pressure in the Antarctic region using GPS RO measurements and to identify any trends in these parameters that may be associated with other atmospheric parameters, such as Sea Surface Temperature and ozone concentration, during GPS RO satellite missions
  • To utilise the temperature measurements derived from GPS RO at given pressure levels to study long-term trends
  • To assimilate GPS RO measurements from the Antarctic region into the Australian Bureau of Meteorology’s (BoM) Australian Community Climate and Earth-System Simulator (ACCESS) Numerical Weather Prediction (NWP) model
  • To determine the impact of utilising GPS RO measurements in the ACCESS NWP model for improving the forecast accuracy associated with long term weather trends over the Antarctic region
  • To use high vertical resolution GPS RO measurements, with other supporting ground-based and space-based remote sensing techniques, to study the climate-related trends in the fine-scale structure of the Troposphere and Stratosphere.

Partners

This is a joint research venture between

Continuous improvements to the reliability and accuracy of weather forecasting are crucial aids in preventing damage caused by severe weather phenomena such as tropical cyclones and thunderstorms.

Monitoring climate change is of great importance. The Earth’s climate is a dynamic system that is increasing influenced by human activity. Improvements to the forecasting accuracy of operational numerical weather prediction (NWP) systems and enhancements to the reliability of climate change analyses rely heavily on the availability of new technologies and new measurements. Due to its unprecedented high vertical resolution, degree of accuracy, global coverage ability and long term stability, GPS radio occultation (RO) has the capacity to complement other meteorological observation systems and significantly improve NWP forecast accuracy and global weather analyses.

The aim of this project is to investigate new methods for assimilating GPS RO data into NWP models for weather forecasting and climate monitoring. This study will explore new methodologies for improving the precision of temperature and moisture profiles in the troposphere. It will do this by using a combination of retrievals from GPS RO data and observations from high-resolution instruments such as the hyper-spectral Atmospheric Infrared Sounder (AIRS). The impact of different types of observations and their integration into global NWP forecast systems will be investigated within the context of one-dimensional three-dimensional and four-dimensional variational analysis frameworks.

The final aim of this project is to find the optimal combination of GPS RO data and remote sensing data required to precisely determine the atmospheric state thereby improving NWP and the accuracy of climate monitoring.

Key people

This is a joint research venture between the RMIT University SPACE Research Centre (Formally SPAN) and NOAA's World Data Centre for Meteorology.

aboriginal flag
torres strait flag

Acknowledgement of country

RMIT University acknowledges the people of the Woi wurrung and Boon wurrung language groups of the eastern Kulin Nation on whose unceded lands we conduct the business of the University. RMIT University respectfully acknowledges their Ancestors and Elders, past and present. RMIT also acknowledges the Traditional Custodians and their Ancestors of the lands and waters across Australia where we conduct our business. - Artwork created by Louisa Bloomer