Emission of atmospheric pollutants during forest fire in boreal region of China

2020 ◽  
Vol 264 ◽  
pp. 114709
Author(s):  
Linfei Guo ◽  
Yuanfan Ma ◽  
Mulualem Tigabu ◽  
Xinbin Guo ◽  
Wenxia Zheng ◽  
...  
Keyword(s):  
Forest Fire ◽  
Atmospheric Pollutants ◽  
Boreal Region

scholarly journals Identification of Black Dragon forest fire in Amur River Basin Using Satellite Borne NDVI Data and Its Impact on Long Range Transport of Pollutants: A Case Study

2019 ◽  
Vol 2 (3) ◽  
Author(s):  
Ankita Nath ◽  
Reshmita Nath
Keyword(s):  
Long Range ◽  
Forest Fire ◽  
North Pacific Ocean ◽  
Atmospheric Pollutants ◽  
Amur River Basin ◽  
Conifer Forest ◽  
Fire Event ◽  
Amur River ◽  
Burned Areas ◽  
The Impact

The Greater Hinggan Forest was the world’s largest stand of evergreens, along the Black Dragon River (also known as Amur), which forms the border between Chinese Manchuria and Soviet Siberia. Black Dragon fire ranks as one of the worst environmental disasters of the 20th century and it burned about 18 million acres of conifer forest. In the 2nd week of May, 1987, we observe more than 10K rise in brightness temperature over a wide region in the China-Russia border. The weekly mean NDVI data shows the changes in greenness after the forest fire broke out. The NDVI value is positive with persistent greenness and vegetation in the Amur River valley, but from the 2nd week of May onwards the reddish patch appears to spread over the entire region, indicates the burned areas. In addition, we observe the impact of Black Dragon forest fire on tropospheric ozone concentration, aerosol index away from the location over North Pacific Ocean. A clear increase in atmospheric pollutants can be noticed after the forest fire event and the long range transports are confirmed with 72 hours NOAA HYSPLIT forward trajectory analysis.

Forest fire in the Boreal Region of China and its impact on the photochemical oxidant cycle of East Asia

2000 ◽  
Vol 34 (3) ◽  
pp. 483-498 ◽  
Author(s):  
Mahesh J Phadnis ◽  
Gregory R Carmichael
Keyword(s):  
East Asia ◽  
Forest Fire ◽  
Boreal Region ◽  
Photochemical Oxidant

Forest fire

AccessScience ◽  
2015 ◽  
Keyword(s):  
Forest Fire

Numerical simulation of the tree higro-thermal response in forest fire environment

2020 ◽  
pp. 57-65
Author(s):  
Eusébio Conceiçã ◽  
João Gomes ◽  
Maria Manuela Lúcio ◽  
Jorge Raposo ◽  
Domingos Xavier Viegas ◽  
...  
Keyword(s):  
Forest Fire ◽  
Numerical Study ◽  
Thermal Response ◽  
View Factor ◽  
Tree Model ◽  
Pine Tree ◽  
Surface Temperatures ◽  
Fire Environment ◽  
Fire Front ◽  
Heat Exchanges

This paper refers to a numerical study of the hypo-thermal behaviour of a pine tree in a forest fire environment. The pine tree thermal response numerical model is based on energy balance integral equations for the tree elements and mass balance integral equation for the water in the tree. The simulation performed considers the heat conduction through the tree elements, heat exchanges by convection between the external tree surfaces and the environment, heat exchanges by radiation between the flame and the external tree surfaces and water heat loss by evaporation from the tree to the environment. The virtual three-dimensional tree model has a height of 7.5 m and is constituted by 8863 cylindrical elements representative of its trunks, branches and leaves. The fire front has 10 m long and a 2 m high. The study was conducted taking into account that the pine tree is located 5, 10 or 15 m from the fire front. For these three analyzed distances, the numerical results obtained regarding to the distribution of the view factors, mean radiant temperature and surface temperatures of the pine tree are presented. As main conclusion, it can be stated that the values of the view factor, MRT and surface temperatures of the pine tree decrease with increasing distance from the pine tree in front of fire.

RLC FOREST FIRE IMAGES IN RUSSIA, 1998-1999

2004 ◽  
Author(s):  
S. D. AMBROSE ◽  
P. SCHLESINGER ◽  
T. A. STONE
Keyword(s):  
Forest Fire
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