Dr Imtiaz Dharssi

Researcher
About
Dr Imtiaz Dharssi

Imtiaz Dharssi is a Land Surface Data Assimilation Scientist at Centre for Australian Weather and Climate Research, having previously worked for The Met Office in the UK for over 11 years. Hi reserach interests include:

  • Assimilation of satellite derived soil moisture
  • The Unified Model soil moisture nudging scheme
  • Parametrization of the soil physical properties
  • High-resolution soil texture maps for the Unified Model

Project leadership

Improving land dryness measures and forecasts
This research has developed a prototype, high-resolution soil-moisture analysis system called JASMIN, which is a significant improvement in accuracy compared to currently used models. It is based on research that examines the use of land surface models, remotely sensed satellite measurements and data assimilation techniques to improve the monitoring and prediction of soil dryness. The new information will be calibrated for use within the existing fire prediction systems. This retains the accuracy, temporal and spatial resolution of the new product without changing the overall climatology of Forest Fire Danger Index and other calculations based on soil moisture.
Research team:
cyeo, vinodkumar, jkepert, jwalker, igrant, Adam Smith, Peter Steinle

Supervisory roles

Project Student
Investigating the effect of soil moisture, temperature and precipitation extremes on fire risk and intensity in Australia aholmes
Soil moisture from ACCESS global numerical weather prediction model.
10/2020
Report
Exploring the soil moisture-live fuel moisture relationship
Kumar,V.,Dharssi,I.,Yebra,M.,Fox-Hughes,P.
Delegates at AFAC19, Melbourne.
12/2019
Conference Paper
JASMIN: a high-resolution soil moisture analysis system for fire predi...
Kumar,V.,Dharssi,I.,Fox-Hughes,P.
Dry soil can have impacts on fire.
07/2019
Report
Use of remote sensing measurements and data assimilation techniques to...
Kumar,V.,Dharssi,I.
Dry soil can have impacts on fire.
12/2019
Report
Disaggregation of JASMIN soil moisture product to 1KM resolution
Kumar,V.,Dharssi,I.,Fox-Hughes,P.
01/2019
Journal Article
Evaluation and calibration of a high-resolution soil moisture product...
Kumar,V.,Dharssi,I.
JASMIN soil moisture on Australian Flammability Monitoring System. Photo: Australian National University.
08/2019
Report
Mitigating the effects of severe fires, floods and heatwaves through t...
Kumar,V.,Fox-Hughes,P.,Dharssi,I.
09/2018
Conference Paper
Evaluation and calibration of a land surface based soil moisture for f...
Kumar,V.,Dharssi,I.,Fox-Hughes,P.
09/2017
Report
Mitigating the effects of severe fires, floods and heatwaves through t...
Kumar,V.,Dharssi,I.,Holmes,A.
11/2017
Report
Downscaling of soil dryness estimates: a short review
Kumar,V.,Dharssi,I.
10/2017
Report
JASMIN: A prototype high resolution soil moisture analysis system for...
Dharssi,I.,Kumar,V.
01/2017
Journal Article
Comparison of soil wetness from multiple models over Australia with ob...
Kumar,V.,Dharssi,I.,Bally,J.,Steinle,P.,McJannet,D.,Walker,J.
11/2017
Report
Evaluation of daily soil moisture deficit used in Australian forest fi...
Kumar,V.,Dharssi,I.
12/2016
Journal Article
Comparison of remotely sensed and modelled soil moisture data sets acr...
Holgate,C.M.,De Jeu,R.A.M.,van Dijk,A.,Liu,Y.Y.,Renzullo,L.J.,Kumar,V.,Dharssi,I.,Parinussa,R.M.,Van Der Schalie,R.,Gevaert,A.,Walker,J.,McJannet,D.,Cleverly,J.,Haverd,V.,Trudinger,C.,Briggs,P.
09/2016
Report
Mitigating the effects of severe fires, floods and heatwaves through t...
Dharssi,I.,Kumar,V.
08/2016
Conference Paper
A high-resolution land dryness analysis system for Australia
Dharssi,I.,Kumar,V.
Conference Paper
Verification of soil moisture from land surface models and traditional...
Kumar,V.,Dharssi,I.
12/2015
Report
Sources of soil dryness measures and forecasts for fire danger rating
Kumar,V.,Dharssi,I.
Presentation
Mitigating the effects of severe fires, floods and heatwaves through t...
Dharssi,I.,Kumar,V.
Conference Paper
Mitigating the Effects of Severe Fires, Floods and Heatwaves Conferenc...
Dharssi,I.,Kumar,V.,Yeo,C.,Bally,J.,Kepert,J.
02/11/2015
Report
Mitigating the effects of severe fires, floods and heatwaves through i...
Dharssi,I.,Kumar,V.
Report
Mitigating the Effects of Severe Fires, Floods and Heatwaves Annual Re...
Dharssi,I.
A new soil dryness product for fire prediction applications
19 Sep 2018
A new soil dryness product for fire prediction applications
fire, flood
The present study discuss the development and evaluation of a new soil dryness product based on an...
Investigating the effect of soil moisture, temperature and precipitation extremes on fires risk and intensity in Australia
19 Sep 2018
Investigating the effect of soil moisture, temperature and precipitation extremes on fires risk and intensity in Australia
fire
The frequency of extreme events such as heatwaves are expected to increase due to the effect of...
Improved measures and forecasts of soil dryness
29 Jun 2017
Improved measures and forecasts of soil dryness
fire, flood
New approaches are available to calculate soil dryness more accurately through the use of satellite...
Alex Holmes Conference Poster 2016
14 Aug 2016
A comparison of soil moisture proxies across Australia
soil moisture
Extreme temperature and deficits in soil moisture provide ample conditions for bushfires.
Vinod Kumar Conference Poster 2016
14 Aug 2016
Soil dryness in fire danger rating: time for a change in approach?
fire severity
Soil dryness is a key component in operational fire danger rating systems.
Sources of Soil Dryness Measures and Forecasts
18 Aug 2015
Sources of Soil Dryness Measures and Forecasts
remote sensing, soil moisture
Emerging new approaches to evaluate landscape dryness through the use of satellite remote sensing...
Towards the Assimilation of AMSR2 Soil Moisture and Vegetation Data for Natural Hazard Monitoring and Prediction
18 Aug 2015
Towards the Assimilation of AMSR2 Soil Moisture and Vegetation Data for Natural Hazard Monitoring and Prediction
environments, modelling
This project aims to improve the estimation of landscape moisture through the assimilation of AMSR2...
Improving Fire Risk Estimation through Investigating Fire Intensity, Moisture and Temperature Anomalies
18 Aug 2015
Improving Fire Risk Estimation through Investigating Fire Intensity, Moisture and Temperature Anomalies
fire, modelling
The accuracy of FDI's are largely dependent on their input variables and advancements in remote...
Mitigating the effects of severe fires, floods and heatwaves through the improvements of land dryness measures and forecasts
25 Aug 2014
Mitigating the effects of severe fires, floods and heatwaves through the improvements of land dryness measures and forecasts
This project will improve Australia’s ability to manage extreme events by developing a state of the...

Resources credited

Typesort descending Released Title Download Key Topics
Presentation-Slideshow 05 Dec 2014 Mitigating the effects of severe hazards PDF icon Save (1.99 MB) forecasting, modelling, soil moisture
Presentation-Slideshow 26 Jun 2015 Verification of Soil Moisture from Multiple Models for Bushfire Danger Rating Applications PDF icon Save (4.32 MB) fire, flood, remote sensing
Presentation-Slideshow 11 Sep 2015 Verification of soil moisture from multiple sources for bushfire danger rating applications PDF icon Save (3.33 MB) fire impacts, soil moisture
Presentation-Slideshow 30 Aug 2016 A high resolution land dryness analysis system for Australia - Imtiaz Dharssi PDF icon Save (3.93 MB) fire weather, flood, severe weather
Presentation-Slideshow 24 Oct 2016 Mitigating the effects of sever fires, floods and heatwaves through improvement to land dryness measures and forecasts PDF icon Save (3.12 MB) fire, flood, forecasting
HazardNoteEdition 28 Nov 2016 Monitoring and predicting natural hazards PDF icon Save (853.18 KB) forecasting, modelling, severe weather
HazardNoteEdition 14 Jun 2017 Soil moisture prototype improves forecasts PDF icon Save (186.47 KB) forecasting, land management, soil moisture
Presentation-Slideshow 18 May 2017 Towards an improved land dryness estimate for fire prediction PDF icon Save (5.71 MB) fire, flood, remote sensing
Presentation-Slideshow 31 Oct 2017 Mitigating the effect of severe fires, floods and heatwaves through improvements to land dryness measures and forecasts PDF icon Save (1.38 MB) forecasting, land management, mitigation
Presentation-Slideshow 19 Sep 2018 Evaluation and calibration of a land surface model based soil moisture analysis for fire prediction PDF icon Save (3.08 MB) soil moisture
Presentation-Slideshow 27 Aug 2019 JASMIN: A high-resolution soil moisture analysis for fire prediction PDF icon Save (2.15 MB) fire, flood
Presentation-Slideshow 17 Oct 2019 Mitigating the effects of severe fires, floods and heatwaves through the improvements of land dryness measures and forecasts PDF icon Save (1.41 MB) forecasting, land management
Presentation-Slideshow 21 Mar 2014 Monitoring and prediction PDF icon Save (7.35 MB) flood, modelling, multi-hazard
Presentation-Slideshow 08 Sep 2014 Mitigating the effects of severe fires, floods and heatwaves PDF icon Save (1.7 MB) fire, flood, forecasting
Presentation-Audio-Video 27 Oct 2014 Mitigating the effects of severe fires, floods and heatwaves fire, flood, forecasting

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