scholarly journals Vegetation responses to climate extremes recorded by remotely sensed atmospheric formaldehyde

2021 ◽  
Author(s):  
Catherine Morfopoulos ◽  
Jean‐François Müller ◽  
Trissevgeni Stavrakou ◽  
Maite Bauwens ◽  
Isabelle De Smedt ◽  
...  
Keyword(s):  
Climate Extremes ◽  
Remotely Sensed ◽  
Vegetation Responses

scholarly journals Vegetation responses to climate extremes recorded by remotely sensed atmospheric formaldehyde

2021 ◽  
Author(s):  
Catherine Morfopoulos ◽  
Jean-François Müller ◽  
Trissevgeni Stavrakou ◽  
Maite Bauwens ◽  
Isabelle De Smedt ◽  
...  
Keyword(s):  
Reducing Power ◽  
Remote Sensing Data ◽  
Climate Extremes ◽  
Remotely Sensed ◽  
Vegetation Stress ◽  
Vegetation Responses ◽  
Volatile Organic ◽  
Response To Water ◽  
Local Emissions ◽  
Modelling And Forecasting

<p>Accurate monitoring of vegetation stress is required for better modelling and forecasting of primary production, in a world where heatwaves and droughts are expected to become increasingly prevalent. Variability in formaldehyde (HCHO) concentrations in the troposphere is dominated by local emissions of short-lived biogenic (BVOC) and pyrogenic volatile organic compounds. BVOCs are emitted by plants in a rapid protective response to abiotic stress, mediated by the energetic status of leaves (the excess of reducing power when photosynthetic light and dark reactions are decoupled, as occurs when stomata close in response to water stress). Emissions also increase exponentially with leaf temperature. New analytical methods for the detection of spatiotemporally contiguous extremes in remote-sensing data are applied here to satellite-derived atmospheric HCHO columns. BVOC emissions are shown to play a central role in the formation of the largest positive HCHO anomalies. Although vegetation stress can be captured by various remotely sensed quantities, spaceborne HCHO emerges as the most consistent recorder of vegetation responses to the largest climate extremes, especially in forested regions.</p>

Changes in climate extremes in Vietnam

2017 ◽  
Vol 59 (1) ◽  
pp. 79-87
Author(s):  
Van Thang Nguyen ◽  
Van Khiem Mai ◽  
Van Thang Vu ◽  
Dang Mau Nguyen ◽  
Ngoc Bich Phuong Nguyen ◽  
...  
Keyword(s):  
Climate Extremes

Remotely sensed imagery revealing the effects of hurricanes Gustav and Ike on coastal Louisiana

Data Series ◽  
10.3133/ds566 ◽  
2010 ◽  
Author(s):  
John A. Barras ◽  
John C. Brock ◽  
Robert A. Morton ◽  
Laurinda J. Travers
Keyword(s):  
Remotely Sensed ◽  
Remotely Sensed Imagery ◽  
Coastal Louisiana
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