Flood

/Flood
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, [...]

21 09, 2018

The September 2018 Super Typhoon Mangkhut: Some Rapid Risk Analyses

September 21st, 2018|APIs, Asia, Earth Observation, Exposure, Flood, Hurricane, Image Analysis, Insurance, Location Intelligence, Major Events, Tropical Cyclone, Typhoon|

21 September 2018 Super Typhoon Mangkhut made landfall in Guangdong Province, China around 5 PM Sunday (16 September 2018) as a Category 2 hurricane (in Saffir–Simpson hurricane wind scale). This blog summarises a number of rapid analyses we performed and some of our existing information products that can be used to help assess the [...]

21 09, 2018

Assessing the Impact of the September 2018 Hurricane Florence

September 21st, 2018|APIs, Earth Observation, Exposure, Flood, Hurricane, Image Analysis, Insurance, Location Intelligence, Major Events, Tropical Cyclone, Typhoon, USA|

21 September 2018 Hurricane Florence made landfall near Wrightsville Beach, North Carolina at 7:15 AM on Friday (14 September 2018) as a Category 1 hurricane. This blog summarises some of our existing information products and new analytics that can be used to help assess the impact of this major event. 1. Location [...]

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 [...]

5 12, 2016

BigData Earth Develops New Location Profile Report for Worldwide Agricultural Land

December 5th, 2016|Agriculture, Asia, Asset Management, Climate Change, Earth Observation, Flood, Image Analysis, Location Intelligence, Property Information|

5 December 2016 Modern Earth observation technologies (spaceborne, airborne and terrestrial) are increasingly deployed to capture environmental attributes about agricultural land and assets. Big data collected by various sensors and the information extracted are critical for the growing AgTech and precision agriculture industry. Many baseline terrain and environmental attributes for agricultural land should be systematically [...]

1 04, 2016

Innovative Earth Observation Image Analysis for Wildfires and Flooding: Two U.S. Examples

April 1st, 2016|Bushfire, Earth Observation, Flood, Image Analysis, Landsat, Major Events, USA, Wildfire|

Modern Earth Observation satellites are often equipped with special sensors that are capable of measuring the reflectance of ground features at short-wave infrared (SWIR) wavelengths. Most SWIR images currently in use are from the following four major satellites: Sentinel-2 (ESA, 20m resolution for SWIR bands) Landsat-8 and Landsat-7 (NASA & USGS, 30m resolution for SWIR bands) ASTER [...]