T3.2 Northern High Latitudes - Permafrost...T3.2 Northern High Latitudes - Permafrost Terrestrial...
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1 Helmholtz Climate Initiative Regional Climate Change Evaluation of Permafrost Remote Sensing Products and Background Parameterization for Models T3.2 Northern High Latitudes - Permafrost www.reklim.de Terrestrial Permafrost Permafrost (defined as ground below or at 0°C for at least 2 years) has been identified as one of six indicators of global climate change (World Meteorological Observation, WMO). Permafrost is a key component of the cryosphere through its influence on regional energy and water exchanges, greenhouse gas fluxes and carbon budgets – and hence plays an important role in the global climate system. B. Heim 1 , K. Klehmet 2 , A. Bartsch 3 , K. Elger 1 , J. Boike 1A , F. Günther 1 , H. Lantuit 1 , B. Rockel 2 , M. Langer 1A , S. Muster 1A , A. Morgenstern 1 , K. Piel 1A , J. Sobiech 1 , U. Herzschuh 1 , H.-W. Hubberten 1 The high-latitude ecosystems play a strong role in the climate system. Operational Remote Sensing Observations AWI / HGF-SPARC: Samoylov (RU), Svalbard (NO), Polar Bear Pass (CA) Evaluation Introduction GTN-P Global terrestrial Network of Permafrost initiated by the IPA, authorized under GCOS Using Circum-Arctic Ground Observations Regional-Scale Instruments Regional Climate Modelling Lena River catchment COSMO-CLM (model of the Consortium for Small-scale Modelling in CLimate Mode) global and regional input-datasets (land cover, soils) [outside model] external background parameters (albedo, fraction vegetation, LAI, Z 0 , thermal emissivity) [outside model/ modelled] output parameters (soil moisture, frozen/ thawed state, temperature) [modelled] Evaluation of (Günther et al., 2011) lake status (2001 & 2009) 1 (Morgenstern et al., 2011) lake status (2000/ 2001) default: 10 m depth rivers, 3 m depth 2 1 4 3 no inland water referenced lake depth Lena River Delta Central Yaktuian Lake districts to provide a consistent meteorological data set at high spatial- and temporal resolution Orange = >10% rockland Red = 80-90 % rockland Pink = 100 % rockland Langer et al. (2010) Westermann et al. (2011) In RSE Evaluation of Background-Data for Modelling Ongoing New regional to circum-arctic thematic background data: soils/rock, water bodies, wetlands, peatland Adaptation of pre-processing for models for permafrost regions Northern Circumpolar Soils Map (Tarnocai et al. 2002) Global Lake Data Set (Kourzeneva, 2010) First Results: water land cover subground German-Russian long-term measurement field Samoylov (RU). AWI / HGF-SPARC Soil background-data from the FAO (1971-1981): contain no ‚rock‘ in mountain regions future ? present Global warming is most pronounced in high-latitudes. Water (23 %) Wet (47 %) Dry (30 %) AWI / HGF-SPARC: Samoylov (RU), VNIR aerial surface classification tundra: 100% vegetation cover & wetlands & ponds but: model LUT definition for tundra: sparce vegetation, 50% barren! GTN-P site Yubileynoe (RU) GTN-P site Nadym (RU) Comparison Tair versus LST R 2 = 0,9686 ‐60 ‐50 ‐40 ‐30 ‐20 ‐10 0 10 20 30 ‐60 ‐50 ‐40 ‐30 ‐20 ‐10 0 10 20 30 40 Monthly Bias (Tair ‐ LST) 0 50 100 150 200 250 2009‐2010 Aug sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Number of Value ‐6,00 ‐5,00 ‐4,00 ‐3,00 ‐2,00 ‐1,00 0,00 1,00 2,00 3,00 Temperature (°C) Nb of Values Nb of Night Nb of Day Bias 1A young Investigator 2 3 Muster et al. (2010) GLC2000, ECOCLIMAP lake status (2007, 2008, 2009, 2010) after Romanovsky in Los Angeles Times
Transcript of T3.2 Northern High Latitudes - Permafrost...T3.2 Northern High Latitudes - Permafrost Terrestrial...
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Helmholtz Climate Initiative
Regional Climate Change
Evaluation of Permafrost Remote Sensing Products and Background Parameterization for Models
T3.2 Northern High Latitudes - Permafrost
www.reklim.de
Terrestrial PermafrostPermafrost (defined as ground below or at 0°C for at least 2 years)has been identified as one of six indicators of global climate change(World Meteorological Observation, WMO).
Permafrost is a key component of the cryosphere through itsinfluence on regional energy and water exchanges, greenhousegas fluxes and carbon budgets – and hence plays an important rolein the global climate system.
B. Heim1, K. Klehmet2, A. Bartsch3, K. Elger1, J. Boike1A, F. Günther1, H. Lantuit1, B. Rockel2, M. Langer1A, S. Muster1A, A. Morgenstern1, K. Piel1A, J. Sobiech1, U. Herzschuh1, H.-W. Hubberten1
The high-latitude ecosystems play a strong role in the climate system.
Operational Remote Sensing Observations
AWI / HGF-SPARC: Samoylov (RU), Svalbard (NO), Polar Bear Pass (CA)
Evaluation
Introduction
GTN-P Global terrestrial Network of Permafrostinitiated by the IPA, authorized under GCOS
Using Circum-Arctic Ground Observations
Regional-Scale Instruments
Regional Climate Modelling
Lena River catchment
COSMO-CLM (model of the Consortium for Small-scale Modelling in CLimate Mode)
global and regional input-datasets (land cover, soils) [outside model]
external background parameters (albedo, fraction vegetation, LAI, Z0, thermal emissivity)
[outside model/ modelled]
output parameters (soil moisture, frozen/ thawed state, temperature) [modelled]
Evaluation of
(Günther et al., 2011)
lake status (2001 & 2009)
1
(Morgenstern et al., 2011)lake status (2000/ 2001)
default: 10 m depth
rivers, 3 m depth
2
1
4
3
no inland water
referenced lake depth
LenaRiver Delta
Central YaktuianLake districts
to provide a consistentmeteorological data set athigh spatial- and temporalresolution
Orange = >10% rocklandRed = 80-90 % rocklandPink = 100 % rockland
Langer et al. (2010)Westermann et al. (2011)
In RSE
Evaluation of Background-Data for Modelling
Ongoing New regional to circum-arctic thematic background data: soils/rock, water bodies, wetlands, peatland
Adaptation of pre-processing for models for permafrost regions
Northern C
ircumpolar S
oils Map (Tarnocai et al. 2002)
Glo
bal L
ake
Dat
a S
et
(Kou
rzen
eva,
201
0)
First Results:
water
land cover
subground
German-Russian long-term measurement field Samoylov (RU). AWI / HGF-SPARC
Soil background-data from the FAO (1971-1981): contain no ‚rock‘ in mountain regions
futu
re ?
present
Global warming is most pronounced in high-latitudes.
Water (23 %) Wet (47 %)Dry (30 %)
AWI / HGF-SPARC: Samoylov (RU),VNIR aerial surface classification
tundra: 100% vegetation cover & wetlands & pondsbut: model LUT definition for tundra: sparce vegetation,
50% barren!
GTN-P site Yubileynoe (RU)
GTN-P site Nadym (RU)
Comparison Tair versus LST
R2 = 0,9686
‐60
‐50
‐40
‐30
‐20
‐10
0
10
20
30
‐60 ‐50 ‐40 ‐30 ‐20 ‐10 0 10 20 30 40
Monthly Bias (Tair ‐ LST)
0
50
100
150
200
250
2009‐2010 Au
gsep
Oct
Nov
Dec
Jan
Feb
Mar Ap
rMay Ju
n Jul
Number of Value
‐6,00
‐5,00
‐4,00
‐3,00
‐2,00
‐1,00
0,00
1,00
2,00
3,00
Temperature (°C)
Nb of Values Nb of Night Nb of Day Bias
1Ayoung
Investigator
2
3
Muster et al. (2010)
GLC
2000
, E
CO
CLI
MA
P
lake status (2007, 2008, 2009, 2010)
after Romanovsky in Los Angeles Times
