https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 The Application of CYGNSS Data for Soil Moisture and Inundation Mapping in Australia https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39771 Wed 22 Jun 2022 11:58:11 AEST ]]> Satellite remote sensing in hydrological data assimilation https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:40495 Wed 13 Jul 2022 14:48:38 AEST ]]> Monitoring and Mapping Vegetation Cover Changes in Arid and Semi-Arid Areas Using Remote Sensing Technology: A Review https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:53294 Wed 07 Feb 2024 15:04:49 AEDT ]]> Assimilation of GRACE Follow‐On Inter‐Satellite Laser Ranging Measurements Into Land Surface Models https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:51446 Wed 06 Sep 2023 10:21:03 AEST ]]> Novel Along-Track Processing of GRACE Follow-On Laser Ranging Measurements Found Abrupt Water Storage Increase and Land Subsidence During the 2021 March Australian Flooding https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:44039 Wed 05 Oct 2022 15:26:03 AEDT ]]> The 2019–2020 rise in lake victoria monitored from space: exploiting the state-of-the-art grace-fo and the newly released era-5 reanalysis products https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:45659 Wed 02 Nov 2022 15:52:07 AEDT ]]> Monitoring water storage decline over the Middle East https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:45622 Wed 02 Nov 2022 14:48:58 AEDT ]]> A sequential Monte Carlo framework for noise filtering in InSAR time series https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:38364 Wed 01 Dec 2021 10:19:30 AEDT ]]> Characterizing positioning errors when using the second-generation Australian satellite-based augmentation system https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:38596 Tue 16 Nov 2021 15:39:36 AEDT ]]> Analysis of surface water areal changes using remote sensing data https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:40260 Tue 02 Aug 2022 11:09:13 AEST ]]> Development and validation of a physically-based, national-scale hydrological model in China https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39148 NSE) was found to be larger than 0.7 at 80% of the stations, and the absolute value of relative error (RE) was less than 10% at 95% of the stations. Our result highlights the benefit of incorporating new mechanisms on the special vadose zone water movement and accounts for the impact of elevation change on meteorological and vegetation variables. This paper can serve as a reference for large-scale hydrological simulation with diverse climate, topography and underlying surface conditions.]]> Thu 19 May 2022 15:37:21 AEST ]]> Altimetry-derived surface water data assimilation over the Nile basin https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:38482 Mon 29 Apr 2024 15:04:00 AEST ]]> Calibrating land hydrological models and enhancing their forecasting skills using an ensemble Kalman filter with one-step-ahead smoothing https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:38183 Mon 09 Aug 2021 16:05:40 AEST ]]> Temporal Monitoring and Predicting of the Abundance of Malaria Vectors Using Time Series Analysis of Remote Sensing Data through Google Earth Engine https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:48209 Mon 08 May 2023 15:36:21 AEST ]]> Assessment of the New DFMC and PPP services of the second-generation SBAS in the Mining and Urban environments https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:46573 Fri 25 Nov 2022 11:54:23 AEDT ]]> Land Surface Model Calibration Using Satellite Remote Sensing Data https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:52676 Fri 20 Oct 2023 09:30:22 AEDT ]]> Predicting the location of larval habitats of Anopheles mosquitoes using remote sensing and soil type data https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:51743 Fri 15 Sep 2023 18:13:44 AEST ]]> The Impact of Dam Construction on Downstream Vegetation Area in Dry Areas Using Satellite Remote Sensing: A Case Study https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:53661 The assessment of ecosystem quality and the maintenance of optimal ecosystem function require understanding vegetation area dynamics and their relationship with climate variables. This study aims to detect vegetation area changes downstream of the Hali dam, which was built in 2009, and to understand the influence of the dam as well as climatic variables on the region’s vegetation areas from 2000 to 2020. The case study is located in an arid area with an average rainfall amount from 50 to 100 mm/year. An analysis of seasonal changes in vegetation areas was conducted using the Normalized Difference Vegetation Index (NDVI), and supervised image classification was used to evaluate changes in vegetation areas using Landsat imagery. Pearson correlation and multivariate linear regression were used to assess the response of local vegetation areas to both hydrologic changes due to dam construction and climate variability. The NDVI analysis revealed a considerable vegetation decline after the dam construction in the dry season. This is primarily associated with the impoundment of seasonal water by the dam and the increase in cropland areas due to dam irrigation. A significantly stronger correlation between vegetation changes and precipitation and temperature variations was observed before the dam construction. Furthermore, multivariant linear regression was used to evaluate the variations in equivalent water thickness (EWT), climate data, and NDVI before and after the dam construction. The results suggested that 85 percent of the variability in the mean NDVI was driven by climate variables and EWT before the dam construction. On the other hand, it was found that only 42 percent of the variations in the NDVI were driven by climate variables and EWT from 2010 to 2020 for both dry and wet seasons.]]> Fri 15 Dec 2023 11:05:47 AEDT ]]>