ipilps workshop ansto 18-22 april 2005
DESCRIPTION
IPILPS Forcing & REMOiso Performance by Dr Matt Fischer and Kristof Sturm. IPILPS Workshop ANSTO 18-22 April 2005. Topics. History ECHAM Forcing Variables Performance - Europe - South America - Australia FAR interpolation. Resolution ? Climate ? Isotopes ? Locations ?. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/1.jpg)
IPILPS Workshop
ANSTO 18-22 April 2005
IPILPS Forcing & REMOiso Performance
by Dr Matt Fischer and Kristof Sturm
![Page 2: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/2.jpg)
Topics Topics • History
• ECHAM
• Forcing Variables
• Performance - Europe - South America - Australia
• FAR interpolation
![Page 3: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/3.jpg)
HistoryHistory• PILPS, 8 forcing variables: 2 radiation,
pressure, 2 wind, temp., r’fall, humidity
• IPILPS, where to get isotope var’s from?
• Observations?: high resolution data rare, & no information on spatial variance
• Models? - MUGCM - GISS - ECHAM - REMOiso
•
• Resolution ?
• Climate ?
• Isotopes ?
• Locations ?
![Page 4: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/4.jpg)
ECHAMECHAM• ECMWF model, aimed
at climate simulations• ECHAMiso: Spectral
resolution : T30, i.e. 3.75º (~ 450 km)
• Vertical resolution: 19 levels
• REMOiso - RCM nested in ECHAMiso, run in Europe & South America
![Page 5: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/5.jpg)
• List
![Page 6: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/6.jpg)
![Page 7: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/7.jpg)
Fo
rcin
g V
aria
ble
sF
orc
ing
Var
iab
les
![Page 8: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/8.jpg)
Tumbarumba EQY1: RadiationTumbarumba EQY1: Radiation
• List
![Page 9: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/9.jpg)
Tumbarumba EQY1: RainfallTumbarumba EQY1: Rainfall
![Page 10: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/10.jpg)
Tumbarumba BC24: varianceTumbarumba BC24: variance
![Page 11: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/11.jpg)
Tumbarumba BC24: varianceTumbarumba BC24: variance
![Page 12: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/12.jpg)
• REMOiso was run for 4 years (except Manaus), at =< 5 minute resolution
• EQY1 Equilibrium experiment
• BC24 experiment
• FAR interpolation (for Manaus)
REMOisoREMOiso
![Page 13: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/13.jpg)
Topics Topics • History
• ECHAM
• Forcing Variables• Performance
- Europe - South America - Australia
• FAR interpolation
![Page 14: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/14.jpg)
LocationsLocations• Mid-latitude deciduous forest eg. Munich
• 48°N 16°E
• Tropical rainforest eg. Manaus
• 3°S 60°W
• Mid-latitude eucalypt forest eg.Tumbarumba
• 35°S 148°E
![Page 15: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/15.jpg)
Nordeney 18O from April 97 to Feb 99
18O
18O as good, or bad, as precipitation amounts (Sturm et
al., 2004)
18O
Obs
REMO
EuropeEurope
![Page 16: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/16.jpg)
EuropeEurope
![Page 17: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/17.jpg)
South AmericaSouth America
• 5 minute simulations, written for 25 cells:
• Manaus x9
• Zongo x9
• Rocafuerte x9
• Belem x1
• Izobamba x1
![Page 18: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/18.jpg)
1818O in precipitationO in precipitation
![Page 19: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/19.jpg)
ManausManaus
![Page 20: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/20.jpg)
AustraliaAustralia
• First experiment for this domain
• GNIP Stations:Perth, Darwin, Alice Springs, Brisbane, Adelaide, Cape Grim, Melbourne
• Tumbarumba x9
• Padthaway x9
![Page 21: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/21.jpg)
18O Australia
January
![Page 22: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/22.jpg)
July
18O Australia
![Page 23: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/23.jpg)
TemperatureTemperature
![Page 24: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/24.jpg)
RainfallRainfall
![Page 25: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/25.jpg)
RainfallRainfall
![Page 26: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/26.jpg)
1818OO
![Page 27: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/27.jpg)
D-excessD-excess
![Page 28: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/28.jpg)
Summary so far ...Summary so far ...
• REMOiso simulations of Europe and South America compare with data from GNIP stations and general climatology
• REMOiso simulations of Australia are too wet or dry for some sites, but generally compare with GNIP data, excpet perhaps for D-excess
![Page 29: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/29.jpg)
Topics Topics • History
• ECHAM
• Forcing Variables
• Performance - Europe - South America - Australia
• FAR interpolation
![Page 30: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/30.jpg)
Functional autoregression (FAR)Functional autoregression (FAR)• yt = yt-1 + xt + t
• but, we can replace x & y by orthonormal vector subsets.
• y is 5 minute data, x is 6 hour data
• Estimation: of the parameters , , (, ) using method of Damon & Guillas 2001
• Interpolation: Eigenvectors of x & y are ‘stretched & pulled’ over a new set of 6 hour data to form a new set of 5 min data.
• Applications: NCEP
![Page 31: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/31.jpg)
Temperature & WindTemperature & Wind
FAR 5 min.
Linear 5 m.
Original 5 m.
![Page 32: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/32.jpg)
Temperature & WindTemperature & Wind
![Page 33: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/33.jpg)
Temperature & WindTemperature & Wind
FAR 5 min.
Linear 5 m.
Original 5 m.
![Page 34: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/34.jpg)
RainfallRainfall
FAR 5 min.
Linear 5 m.
Original 5 m.
![Page 35: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/35.jpg)
RainfallRainfall
![Page 36: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/36.jpg)
RainfallRainfall
FAR 5 min.
Linear 5 m.
Original 5 m.
![Page 37: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/37.jpg)
Future : more comparisons!Future : more comparisons!REMOiso comparison of:
• the stochastic properties of storms (duration, intensity, rainout) with Australian BOM data (40 yrs of 6 minute rainfall data, Capital cities only)
• Isotopic rainout of individual storms,for BOM data this is an inverse problem using storm data + monthly GNIP data
![Page 38: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/38.jpg)
ConclusionsConclusions• REMOiso, a regional climate model,
produces monthly isotope values in 3 domains which compare with GNIP data, except, perhaps for D-excess
• FAR can be used to downscale observational data; and is based on functional relationships between different timescales, calibrated with an isotope model.
![Page 39: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/39.jpg)
model
![Page 40: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/40.jpg)
FARFAR
FAR 5 min.
Linear 5 m.
Original 5 m.
![Page 41: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/41.jpg)
FARFAR
FAR 5 min.
Linear 5 m.
Original 5 m.
![Page 42: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/42.jpg)
![Page 43: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/43.jpg)
‘‘
• List
![Page 44: IPILPS Workshop ANSTO 18-22 April 2005](https://reader036.vdocument.in/reader036/viewer/2022081603/568154b9550346895dc2c2b3/html5/thumbnails/44.jpg)