| Title |
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ja
森林火災と風の流れ
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en
Forest Fires and Wind Flow
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| Creator |
|
| Accessrights |
open access |
| Subject |
-
Other
en
Large-scale Fire
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Other
en
Wind
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Other
en
Fire Weather
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Other
en
Drought
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Other
en
High Temperature
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Other
en
Hotspot
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Other
en
Climate Change
|
| Description |
-
Abstract
en
In 2004, many large-scale fires occurred in Alaska and the burned area encompassed about 26,700 km2. This was the largest burned area since 1956, and combined with an additional 19,000 km2 burned in 2005 (third-largest fire year), the total burned area comprised about 10% of the Alaskan boreal forest in just two years. To clarify the background of the many large-scale fires in 2004, spatial and temporal analyses using various data were performed in this paper. The derived results allow the following conclusion. Dry and warm weather conditions with strong persistent winds are crucial for fires. In 2004, easterly winds from Canada caused two daily hotspot peaks in late June and late August; one daily hotspot peak in mid-July was caused by southwesterly winds from Bethel or the Bristol Bay. These persistent winds lasted for about one week and promoted fire expansion. The above wind conditions in June and August were caused by the development of a high-pressure system over the Beaufort Sea under a persistent blocking ridge over Alaska.
|
| Publisher |
ja
日本実験力学会
|
| Date |
|
| Language |
|
| Resource Type |
journal article |
| Version Type |
SMUR |
| Identifier |
HDL
http://hdl.handle.net/2115/57790
|
| Relation |
-
isVersionOf
DOI
https://doi.org/10.11395/jjsem.14.155
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NAID
130004691193
|
| Journal |
-
-
ja
実験力学
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Volume Number14
Issue Number3
Page Start155
Page End160
|
| File |
|
| Oaidate |
2023-08-12 |
