21 04, 2020

Four Property Location Information Products to Enrich G-NAF (Address Database) in Australia

April 21st, 2020|APIs, Apps, Asset Management, Australia, Elevation, Exposure, Geospatial Big Data Analytics, Insurance, Location Intelligence, Property Information, Real Estate, Risk|

21 April 2020 Geocoded National Address File (G-NAF) is Australia’s authoritative, geocoded address database. It contains more than 14 million physical address records (e.g. residential, commercial and industrial), each having spatially-explicit geocodes such as latitude/longitude coordinates. G-NAF, developed by PSMA Australia, has been available since 2004. A public version, Open G-NAF, has [...]

2 10, 2018

Advancing Bushfire Risk Analytics with Location Profile APIs: Showcases

October 2nd, 2018|APIs, Australia, Bushfire, Elevation, Emergency, Exposure, Insurance, Location Intelligence, Property Information, Risk, USA|

2 October 2018 Bushfire (wildfire or forest fire) risk assessment has been a very common topic in research and practice. Many risk analysis projects, such as identifying likely causes of fire occurrences, mapping fire-prone areas and assessing Bushfire Attack Level (BAL) for buildings, are in place to assist the whole process of bushfire [...]

25 09, 2018

Advancing Flood Risk Analytics with Location Profile APIs: Showcases

September 25th, 2018|APIs, Asia, Australia, Elevation, Emergency, Exposure, Flood, Insurance, Location Intelligence, Property Information, Risk, USA|

25 September 2018 For flood risk assessment, one may develop flood hazard maps directly or just use existing maps which are often associated with modelled hazard return periods. The quality of each flood map is up to a range of factors, such as the quality of elevation and rainfall inputs, modelling methods, [...]

12 03, 2018

The March 2018 Major Flooding in North Queensland, Australia

March 12th, 2018|Australia, Earth Observation, Elevation, Emergency, Flood, Insurance, Location Intelligence, Major Events, Risk|

12 March 2018 Devastating flooding once again took place in the North Queensland region. The Bureau of Meteorology had issued major flood warnings for quite a few river catchments, including: Herbert River Murray River Tully River Johnstone River Russell River Mulgrave River Among the regional cities and towns affected, Ingham has suffered the most damage as [...]

8 12, 2017

A Survey and Clarification of DEM Vertical Accuracy

December 8th, 2017|Earth Observation, Elevation, Flood, Location Intelligence, Risk, USA|

8 December 2017 For flood hazard modelling and risk analysis, Digital Elevation Model (DEM) is indispensable. Probably the most important metric about DEM quality is its vertical accuracy. Unfortunately, it is often confusing in literature and among various data offerings, and there are serious implications for applications, e.g. whether flood hazard rating can be confidently quantified [...]

21 11, 2017

Introducing Three New Tools for Investigating Flood-prone Areas in the U.S. and Australia

November 21st, 2017|Australia, Elevation, Flood, Location Intelligence, Property Information, Risk, USA|

21 November 2017 Flood mapping for large areas (e.g. from catchments to a national level) is relatively new and challenging; associating mapped flood-prone areas with an annual chance of occurrence (in probabilities, say 1%) of a flood event involves many kinds of uncertainties and is even harder. Flood maps that suggest various hazard levels over [...]

3 04, 2017

Visualising Low-lying Areas in Response to Major Flooding: Case Studies in Rockhampton and Bundaberg, Queensland

April 3rd, 2017|Australia, Earth Observation, Elevation, Flood, Location Intelligence, Major Events, Risk|

3 April 2017 Last Friday we developed two animations that show estimated flood extents of the major floods in Lismore and Murwillumbah, northern NSW. Today we extend that work and apply the same technique to effectively map and visualise many low-lying, flood-prone areas in Queensland. We choose the following two areas for demonstration: Rockhampton [...]

31 03, 2017

Rapidly Estimating the Flood Extent of Major Floods in Lismore and Murwillumbah on 31 March 2017: Animated Maps Included

March 31st, 2017|Australia, Earth Observation, Elevation, Flood, Location Intelligence, Major Events, Risk|

31 March 2017 The south-east QLD and northern NSW are often afflicted with widespread flooding caused by the torrential rain typically associated with ex-cyclones, and this time with the remnants of severe Tropical Cyclone Debbie which made landfall on the QLD coast between Bowen and Mackay on 28 March 2017.  Based on the Australian [...]

3 11, 2016

BigData Earth Develops New-generation Property Location Information for Addresses in the U.S. and Australia

November 3rd, 2016|Asset Management, Australia, Climate Change, Earth Observation, Elevation, Location Intelligence, Property Information, Real Estate, Risk, USA|

3 November 2016 For industries such as asset management, real estate and insurance underwriting, the location information of assets (e.g. buildings, infrastructure facilities, and agricultural land) is among the most important. Through deep research and development, BigData Earth creates new-generation property location metrics and insights by integrating various thematic layers (including terrain, land cover, climate change, natural [...]

3 03, 2016

Releasing 30m-resolution, Large-sized Global Elevation Mosaic and Shaded-relief Basemaps

March 3rd, 2016|Elevation|

Terrain data are extremely useful and essential for a wide range of environmental studies. At the local level, high-density LiDAR point clouds and derived high-resolution (e.g. 1m) Digital Elevation Models (DEMs) are increasingly produced. At the global level, medium-resolution (30m) open elevation data (e.g. SRTM and ASTER GDEM) are popular in the scientific community. The quality [...]