Case study in observing the vegetation-albedo feedback during climate change in the Sahel
(2024) In Student thesis series INES NGEK01 20241Dept of Physical Geography and Ecosystem Science
- Abstract
- Due to drying trends in the tropical and subtropical areas there is a potential for significant vegetation loss. As this occurs previous literature has predicted significant increases in desert area, further exacerbated by vegetation-albedo feedback with radiation in climate change. This study analyses this phenomenon at a smaller local scale over an area of 100 x 100 km in the middle of Chad. The aim is to provide a method for examining climate feedbacks at these small spatial scales. Using NDVI and albedo data in addition to climate variables, an overall decrease in fractional vegetation area is observed within the study area from 0.083 to 0.068 over 20 years from 2001 to 2023. This implies a relatively strong local vegetation-albedo... (More)
- Due to drying trends in the tropical and subtropical areas there is a potential for significant vegetation loss. As this occurs previous literature has predicted significant increases in desert area, further exacerbated by vegetation-albedo feedback with radiation in climate change. This study analyses this phenomenon at a smaller local scale over an area of 100 x 100 km in the middle of Chad. The aim is to provide a method for examining climate feedbacks at these small spatial scales. Using NDVI and albedo data in addition to climate variables, an overall decrease in fractional vegetation area is observed within the study area from 0.083 to 0.068 over 20 years from 2001 to 2023. This implies a relatively strong local vegetation-albedo radiation feedback of Y = 1.24 ± 0.25 W/m^2/K, representing a negative feedback loop in the climate system. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9173241
- author
- Kirk, Daniel John LU
- supervisor
- organization
- alternative title
- Case study in the effects of climate change on vegetation-albedo feedback in the Sahel
- Case study of the effects of climate change on vegetation-albedo feedback in desert climates
- course
- NGEK01 20241
- year
- 2024
- type
- M2 - Bachelor Degree
- subject
- keywords
- Desert, Sahel, Vegetation, "Radiative Feedback", Feedback, "Vegetation-Albedo Feedback", "Remote sensing", Climate
- publication/series
- Student thesis series INES
- report number
- 681
- language
- English
- id
- 9173241
- date added to LUP
- 2024-09-04 14:50:22
- date last changed
- 2024-09-04 14:50:22
@misc{9173241, abstract = {{Due to drying trends in the tropical and subtropical areas there is a potential for significant vegetation loss. As this occurs previous literature has predicted significant increases in desert area, further exacerbated by vegetation-albedo feedback with radiation in climate change. This study analyses this phenomenon at a smaller local scale over an area of 100 x 100 km in the middle of Chad. The aim is to provide a method for examining climate feedbacks at these small spatial scales. Using NDVI and albedo data in addition to climate variables, an overall decrease in fractional vegetation area is observed within the study area from 0.083 to 0.068 over 20 years from 2001 to 2023. This implies a relatively strong local vegetation-albedo radiation feedback of Y = 1.24 ± 0.25 W/m^2/K, representing a negative feedback loop in the climate system.}}, author = {{Kirk, Daniel John}}, language = {{eng}}, note = {{Student Paper}}, series = {{Student thesis series INES}}, title = {{Case study in observing the vegetation-albedo feedback during climate change in the Sahel}}, year = {{2024}}, }