The Radiation Balance of Melting Snow in Open Boreal Forest

1981 ◽  
Vol 13 (3) ◽  
pp. 287 ◽  
Author(s):  
D. E. Petzold
Keyword(s):  
Boreal Forest ◽  
Radiation Balance ◽  
Melting Snow

scholarly journals Variability of the Surface Energy Balance in Permafrost Underlain Boreal Forest

2020 ◽  
Author(s):  
Simone Maria Stuenzi ◽  
Julia Boike ◽  
William Cable ◽  
Ulrike Herzschuh ◽  
Stefan Kruse ◽  
...  
Keyword(s):  
Energy Balance ◽  
Surface Energy ◽  
Boreal Forest ◽  
Snow Cover ◽  
Forest Cover ◽  
Surface Energy Balance ◽  
Surface Model ◽  
Radiation Balance ◽  
Near Surface ◽  
Strong Control

Abstract. Boreal forests in permafrost regions make up around one-third of the global forest cover and are an essential component of regional and global climate patterns. Further, climatic change can trigger extensive ecosystem shifts such as the partial disappearance of near surface permafrost or changes to the vegetation structure and composition. Therefore, our aim is to understand how the interactions between the vegetation, permafrost, and the atmosphere stabilize the forests and the underlying permafrost. Existing model set-ups are often static or are not able to capture important processes such as the vertical structure or the leaf physiological properties. There is a need for a physically based model with a robust radiative transfer scheme through the canopy. A one-dimensional land surface model (CryoGrid) is adapted for the application in vegetated areas by coupling a multilayer canopy model (CLM-ml v0) and is used to reproduce the energy transfer and thermal regime at a study site (N 63.18946, E 118.19596) in mixed boreal forest in Eastern Siberia. We have in-situ soil temperature and radiation measurements, to evaluate the model and demonstrate the capabilities of a coupled multilayer forest-permafrost model to investigate the vertical exchange of radiation, heat, and water. We find that the forests exert a strong control on the thermal state of permafrost through changing the radiation balance and snow cover phenology. The forest cover alters the surface energy balance by inhibiting over 90 % of the solar radiation and suppressing turbulent heat fluxes. Additionally, our simulations reveal a surplus in longwave radiation trapped below the canopy, similar to a greenhouse, which leads to a comparable magnitude in storage heat flux to that simulated at the grassland site. Further, the end of season snow cover is three times greater at the forest site and the onset of the snow melting processes are delayed.

Traces of Past Sami Forest Use: An Ecological Study of Culturally Modified Trees and Earlier Land Use Within a Boreal Forest Reserve

2003 ◽  
Vol 18 (1) ◽  
pp. 78-89 ◽  
Author(s):  
Lars Östlund ◽  
Tysk Staffan Ericsson ◽  
Olle Zackrisson ◽  
Rikard Andersson
Keyword(s):  
Land Use ◽  
Boreal Forest ◽  
Ecological Study ◽  
Forest Reserve ◽  
Culturally Modified Trees ◽  
Forest Use

Chemical composition of aerosol during particle formation events in boreal forest

Tellus B ◽  
2001 ◽  
Vol 53 (4) ◽  
pp. 380-393 ◽  
Author(s):  
J. M. MÄKELÄ ◽  
S. YLI‐KOIVISTO ◽  
V. HILTUNEN ◽  
W. SEIDL ◽  
E. SWIETLICKI ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Boreal Forest ◽  
Particle Formation

Overview of the international project on biogenic aerosol formation in the boreal forest (BIOFOR)

Tellus B ◽  
2001 ◽  
Vol 53 (4) ◽  
pp. 324-343 ◽  
Author(s):  
M. KULMALA ◽  
K. HÄMERI ◽  
P. P. AALTO ◽  
J. M. MÄKELÄ ◽  
L. PIRJOLA ◽  
...  
Keyword(s):  
Boreal Forest ◽  
International Project ◽  
Aerosol Formation

NPP BOREAL FOREST: CONSISTENT WORLDWIDE SITE ESTIMATES, 1977-1994

2001 ◽  
Author(s):  
M. J. APPS ◽  
S. T. GOWER ◽  
O. N. KRANKINA ◽  
S. LINDER ◽  
R. J. OLSON ◽  
...  
Keyword(s):  
Boreal Forest

Measuring and modelling the radiation balance of an orange tree

Agrometeoros ◽  
2020 ◽  
Vol 26 (2) ◽  
Author(s):  
Felipe Gustavo Pilau ◽  
Luiz Roberto Angelocci
Keyword(s):  
Radiation Balance ◽  
Orange Tree
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