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Title of Presentation
Ronny Petrik, Beate Geyer, Burkhardt Rockel
THE FINO DATABASE AND ITS APPLICABILITYFOR MODEL EVALUATION
Helmholtz-Zentrum Geesthacht
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Title of Presentation2
MOTIVATIONWhy to deal with tower data? – Example Falkenberg
Daily cycle of different stratifications
@Petrik, 2019 (2nd review)
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Title of Presentation3
MOTIVATIONWhy to deal with tower data? – Falkenberg example
Strong stability under ‘rainy’ conditions
Daily cycle of different stratifications
@Petrik, 2019 (2nd review)
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Title of Presentation4
FINO PLATFORMS
• importance of FINO data: one of few vertical resolved measurements over water
• lead by three different everchangingproviders
• standarization treated by elaborated FINO project (already finished)
@ https://www.fino-offshore.de/en/
FINO 1 characteristics heights
WSS (cup, 2 booms) 33, 40, 50, 60, 70, 80, 90, 101, 105
WDIR (vane) 33, 50, 70, 90
RELHUM (Thies 1.1005.50.512) 34, 41, 51, 71, 91
T (Thies 1.1005.50.512) 34, 41, 51, 71, 91
FINO 2 characteristics heights
WSS (cup, 1 boom) 32, 42, 52, 62, 72, 82, 92, 103
WDIR (vane) 33, 50, 70, 90
RELHUM (Thies, two types) 30, 50, 99
T (Thies 1.1005.50.512) 30, 40, 50, 70, 99
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Title of Presentation5
FINO DATA QUALITYConsistency in instrumentation and measurement
• HZG initiated to discuss about FINO database and observations in 2017: sporadic conversations lead to telephone conference at April 2019 (regarding FINO1)
Hurricanes in North Sea(920 hPa)
• problems are about near-surface fields as well as profiles and corrections
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Title of Presentation6
RELIABILITY OF TEMPERATURE PROFILESStorm Christian, 27.10.2013 – 30.10.2013
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Title of Presentation7
RELIABILITY OF TEMPERATURE PROFILESStorm Christian, 27.10.2006 – 30.10.2013
T-Profiles not completely realiable (instrumentation issue)
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Title of Presentation8
RELIABILITY OF WIND PROFILESLattice correction and consistency to USA
Wind speed CUP [m/s]
Win
d s
pee
dC
UP
un
corr
ecte
d[m
/s]
CUP vs CUPuncorrected, 60m CUP vs USA, 60m
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Title of Presentation9
RELIABILITY OF WIND PROFILESLattice correction and consistency to USA
Wind speed CUP [m/s]
Win
d s
pee
dC
UP
un
corr
ecte
d[m
/s]
CUP vs CUPuncorrected, 60m CUP vs USA, 60m
FORGET about USA measurements
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Title of Presentation10
RELIABILITY OF WIND PROFILES IIDependency of lattice correction
date
CUP vs. CUPuncorrected, 60m CUP vs. CUPuncorrected, 80m
𝜕𝑊𝑆𝑆/𝜕𝑡
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Title of Presentation11
CONCLUSIONS ABOUT QUALITYFINO1 data, for FINO2 and FINO3 new workshops are needed
Model evaluation following the aforementioned issues
• Various sensors with long non-operation periods• Temperature:
elaborated calibration only at 2016, until 2015 only absolute measurements at 33 and 100m and all the
others utilized a difference method (corrupted by power leaks) From end of 2015 single calibrated absolute measurements
• Wind speed: ongoing operational calibration, no lattice correction from 30 m/s and above
• Precipitation: do not use it (fast saturation state)• All: long cables lead to signal interruptions zero values recorded by
the devices
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Title of Presentation12
EVALUATION SETUP
• Temporal overlap between all flux towers + prevent modifications of surroundings (2010 - )
• 3D-model data are needed simulation from openFRED project: MERRA2 forcing Spectral nudging 7 km horizontal resolution
• In future hopefully I am a MESSY
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Title of Presentation13
DAILY CYCLE OVER NORTH SEAFINO1 in comparison to Falkenberg at summer
FINO1 (2010-2011)Falkenberg
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Title of Presentation14
DAILY CYCLE OVER NORTH SEAFINO1 in comparison to Falkenberg at summer
FINO1 (2014-2015)Falkenberg
Temporally varying quality
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Title of Presentation15
ORIGIN OF MODEL ERRORS AT FINO1Top level at 102 meter
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Title of Presentation16
DAILY CYCLE OVER BALTIC SEAFINO2 in comparison to Falkenberg at summer
FINO2Falkenberg
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Title of Presentation17
DAILY CYCLE OVER NORTH SEAFINO3 in comparison to Falkenberg at summer
FINO3 (2010 – 2011)Falkenberg
The modeler does not believe everything
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Title of Presentation18
DAILY CYCLE OVER NORTH SEAFINO3 in comparison to Falkenberg at summer
FINO3 (2014-2015)Falkenberg
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Title of Presentation19
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Title of Presentation20
CONCLUSIONS
• Starting from 2014, the wind profiles become physically more plausible but further investigation is needed
• the well known daily cycle at summer over land not seen over ocean• low-level jet development at first half of night (Baltic) and second half
of night (North Sea)• Overestimation of ‘upper level’ winds at FINO1 but underestimation of
LLJ at FINO2
DATA flux towers• Recent state of FINO data prepared by HZG in NETCDF format• Further data of offshore flux towers exist at HZG in NETCDF format
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Title of Presentation21
THANK YOU FOR YOUR ATTENTIONPassing of Storm Christian, 27.-30.10.2013
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Title of Presentation22
FINO2 – BALTIC SEASummer 2014 and 2015
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Title of Presentation23
OCCURRENCE OF DIFFERENT GROßWETTERLAGEN