Related items
Showing items related by metadata.
-
Book (stand-alone)Rapid geospatial assessment after the earthquake in Syrian Arab Republic in 2023
Impacts on infrastructure and farming community during the period February–March 2023
2023Also available in:
No results found.In February 2023, a powerful earthquake with a magnitude of 7.7 struck northern and western Syria, wreaking havoc on infrastructure, agriculture, and communities. A swift geospatial impact assessment was performed in the hardest-hit region, utilizing satellite imagery, remote sensing, and diverse data sources. By employing the Humanitarian Data Exchange (HDX) and a hexagonal grid system for enhanced analysis, the study meticulously evaluated the earthquake's effects on people, infrastructure, and cropland. The assessment revealed that approximately 942,262 individuals, constituting 7% of the population, were likely impacted by the disaster. Particularly affected were districts like Elbistan, Battalgazi, Yesilyurt, Pozanti, and Golbasi. The research identified 110 km² of damaged built-up areas, with Jebel Saman, Al Ma'ra, Menbij, Al Bab, and A'zaz among the most affected districts. Moreover, irrigated cropland in districts such as Afrin, Ain Al Arab, A’zaz, As-Salamiyeh, and Al Ma’ra suffered considerable exposure. Notably, the study highlighted the dire effects on irrigation infrastructures, particularly wells in districts like Tartous, Lattakia, and As-Salamiyeh, waterways in As-Suqaylabiyah and Jisr-Ash-Shugur, and dams in Bahlolieh, Mzair'a, and Safita. The assessment’s findings underscore the need for field data collection, agronomic advice, and robust response planning. Looking ahead, enhancing spatial information for assessing natural resources, irrigation infrastructure, and agriculture, through methods like high-resolution satellite imagery and accuracy assessment, could yield significant benefits. The assessment's results also emphasize the importance of establishing a national geospatial database and monitoring platform for irrigated land, thereby fostering more effective disaster preparedness and response strategies. -
Book (stand-alone)A rapid geospatial analysis of the impact of the Hunga Tonga volcano eruption 2022
Also available in:
No results found.On the 15th January 2022 the underwater Hunga Tonga–Hunga Haʻapai volcano, located in the north of Tongatapu (the main island of Tonga), erupted following several minor eruptions over the previous weeks. It was reported as the largest recorded eruption in the past 30 years. On 14 January 2022, the Tonga Geological Services issued an alert of the Hunga Tonga Hunga Ha’apai volcanic activity and a tsunami marine warning. The powerful eruption subsequently resulted in a tsunami in Tonga and the surrounding region, with effects reaching countries including Fiji, America Samoa and as far as Chile and Peru. With around 86 percent of Tongans engaged in agriculture, the impacts of the eruption and tsunami may have impacted all agriculture sectors, including fisheries, crops and livestock. The volcanic plume reached 30 km into the atmosphere, releasing volcanic gases and aerosols that were subsequently carried over neighbouring countries, potentially impacting public health and the environment. The Government of Tonga declared a state of emergency on 16 January 2022. -
Brochure, flyer, fact-sheetA rapid geospatial analysis of the flood impacts on crops in Eastern Cape province of South Africa in 2022 2023
Also available in:
No results found.An analysis to assess the impacts of floods on cropland in KwaZulu-Natal province was performed using existing data, GIS and remote sensing. The crop mask was derived from the South African National Land Cover map (SANLC, 2018). The water mask was derived from the Joint Research Centre (JRC) water body data (2020). Sentinel 1 SAR was used to assess flood extent.
Users also downloaded
Showing related downloaded files
No results found.