Dynamic and extensive risk arising from volcanic ash impacts on agriculture
Volcanic ash is an excellent archetype of an ‘extensive hazard’. Ash fall occurs frequently and intermittently during volcanic eruptions, and populations in close proximity to persistently-active volcanoes report ash impacts and distribution that have complex spatial patterns. This is reflected in h...
| Main Authors: | , , , , , |
|---|---|
| Format: | Journal article |
| Published: |
United Nations Office for Disaster Risk Reduction
2019
|
| _version_ | 1797077723032584192 |
|---|---|
| author | Phillips, J Barclay, J Pyle, D Armijos, T Hicks, A Few, R |
| author_facet | Phillips, J Barclay, J Pyle, D Armijos, T Hicks, A Few, R |
| author_sort | Phillips, J |
| collection | OXFORD |
| description | Volcanic ash is an excellent archetype of an ‘extensive hazard’. Ash fall occurs frequently and intermittently during volcanic eruptions, and populations in close proximity to persistently-active volcanoes report ash impacts and distribution that have complex spatial patterns. This is reflected in high-resolution modelling of ash dispersion that integrates local atmospheric and topographic effects. This paper reviews three case studies of long-lasting eruptions in the Caribbean and Ecuador to highlight the extensive characteristics of ash eruption, deposition, and impacts. Over the long term, attritional effects of volcanic ash create negative impacts on livelihood trajectories via loss of income and nutrition from agriculture, and damage to and increased maintenance of critical infrastructure. There are also benefits: communities report that over short time periods following eruptions, there is often increased agricultural productivity. Recognition of the extensive nature of volcanic ash impacts has direct implications for disaster risk reduction policy and practice. These include the need to: anticipate long-lasting costs of relief and potentially severe impacts on people’s wellbeing; plan flexibly to respond to high spatial and temporal variability in impacts; and to be cognisant of communities’ adaptations and actions to maintain livelihoods when undertaking external interventions. This work highlights that collaborations between populations at risk, scientists and managers of risk can create pragmatic solutions that mitigate the most serious impacts and exploit the benefits of volcanic ash. |
| first_indexed | 2024-03-07T00:22:03Z |
| format | Journal article |
| id | oxford-uuid:7ce4cedb-f9cf-40a4-be55-29f7b3d09b81 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T00:22:03Z |
| publishDate | 2019 |
| publisher | United Nations Office for Disaster Risk Reduction |
| record_format | dspace |
| spelling | oxford-uuid:7ce4cedb-f9cf-40a4-be55-29f7b3d09b812022-03-26T20:59:50ZDynamic and extensive risk arising from volcanic ash impacts on agricultureJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7ce4cedb-f9cf-40a4-be55-29f7b3d09b81Symplectic Elements at OxfordUnited Nations Office for Disaster Risk Reduction2019Phillips, JBarclay, JPyle, DArmijos, THicks, AFew, RVolcanic ash is an excellent archetype of an ‘extensive hazard’. Ash fall occurs frequently and intermittently during volcanic eruptions, and populations in close proximity to persistently-active volcanoes report ash impacts and distribution that have complex spatial patterns. This is reflected in high-resolution modelling of ash dispersion that integrates local atmospheric and topographic effects. This paper reviews three case studies of long-lasting eruptions in the Caribbean and Ecuador to highlight the extensive characteristics of ash eruption, deposition, and impacts. Over the long term, attritional effects of volcanic ash create negative impacts on livelihood trajectories via loss of income and nutrition from agriculture, and damage to and increased maintenance of critical infrastructure. There are also benefits: communities report that over short time periods following eruptions, there is often increased agricultural productivity. Recognition of the extensive nature of volcanic ash impacts has direct implications for disaster risk reduction policy and practice. These include the need to: anticipate long-lasting costs of relief and potentially severe impacts on people’s wellbeing; plan flexibly to respond to high spatial and temporal variability in impacts; and to be cognisant of communities’ adaptations and actions to maintain livelihoods when undertaking external interventions. This work highlights that collaborations between populations at risk, scientists and managers of risk can create pragmatic solutions that mitigate the most serious impacts and exploit the benefits of volcanic ash. |
| spellingShingle | Phillips, J Barclay, J Pyle, D Armijos, T Hicks, A Few, R Dynamic and extensive risk arising from volcanic ash impacts on agriculture |
| title | Dynamic and extensive risk arising from volcanic ash impacts on agriculture |
| title_full | Dynamic and extensive risk arising from volcanic ash impacts on agriculture |
| title_fullStr | Dynamic and extensive risk arising from volcanic ash impacts on agriculture |
| title_full_unstemmed | Dynamic and extensive risk arising from volcanic ash impacts on agriculture |
| title_short | Dynamic and extensive risk arising from volcanic ash impacts on agriculture |
| title_sort | dynamic and extensive risk arising from volcanic ash impacts on agriculture |
| work_keys_str_mv | AT phillipsj dynamicandextensiveriskarisingfromvolcanicashimpactsonagriculture AT barclayj dynamicandextensiveriskarisingfromvolcanicashimpactsonagriculture AT pyled dynamicandextensiveriskarisingfromvolcanicashimpactsonagriculture AT armijost dynamicandextensiveriskarisingfromvolcanicashimpactsonagriculture AT hicksa dynamicandextensiveriskarisingfromvolcanicashimpactsonagriculture AT fewr dynamicandextensiveriskarisingfromvolcanicashimpactsonagriculture |