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Weather service in the Dronning Maud Land and beyond

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Weather service in the

Dronning Maud Land and beyond

Dr. Gert König-Langlo

(2)

Rothera, UK

Neumayer, Germany

McMurdo, USA

Mawson, Australia

Forecast Centers

Dronning Maud

Land

(3)
(4)

Tools & Models Verification &Outlook

In Situ Data Forecast Products

(5)

In Situ Data Soundings Synops AWS

Forecast Products Verification &Outlook Tools & Models

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Source: http://uwamrc.ssec.wisc.edu/aws/documents/2013_AWS_Sites_ALL_07_11_2013

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Air Temperature and Relative Humidity

Temperature and Relative Humidity Probe

HMP155 (Vaisala) Successor of HMP45C

Pt100 4 - wire over half bridge 4WPB100 (Campbell Scientific)

Radiation shield

MET21 unaspirated

(11)

Air Temperature

(Meteorological Observatory)

Thermometer Ventilation

Unit

(12)

Neumayer-Station versus AWS

Holger Schmithüsen, 2013

Weekly Averages

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Neumayer-Station versus AWS

Holger Schmithüsen, 2013

Weekly Averages

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Air Pressure

(15)

Air Pressure

(16)

Air Pressure

(17)

Air Pressure

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Wind Direction and Speed

(19)
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1.20 m One year later…

(22)

Forecast Products Verification &Outlook Models

ECMWF AMPS GFS In Situ Data

Soundings Synops AWS

(23)

European Centre for Medium-Range Weather Forecasts

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Antarctic Mesoscale Prediction System

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Antarctic Mesoscale Prediction System

(26)

Global Forecast System, NOAA

(27)

Multi-Model Ensemble System

(28)

Multi-Model Ensemble System

(29)

Verification &Outlook Models

ECMWF AMPS GFS In Situ Data

Soundings Synops AWS

Forecast Products General

Chart

Aerodrome Aviation

(30)

Summer Forecast Service via WEB:

http://www.awi.de/en/infrastructure/stations/neumayer_station/dromlan_service/

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Models ECMWF AMPS GFS In Situ Data

Soundings Synops AWS

Forecast Products General

Chart

Aerodrome Aviation

Verification &Outlook AMPS

ERA-Interim West Antarctica?

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AMPS Verification

Thomas Schmidt

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AMPS Verification

Thomas Schmidt

Forecasted storms are less severe in reality!

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AMPS Verification

Thomas Schmidt

Real storms are heavier than predicted!

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AMPS Verification

Thomas Schmidt

Temperature prediction from the 00 UTC run is quite perfect

(36)

AMPS Verification

Thomas Schmidt

Temperature prediction from the 12 UTC run is quite wrong!

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ERA-Interim Verification

Milan Klöwer et al.

Temperature Trend

(38)

ERA-Interim Verification

Milan Klöwer et al.

Neumayer

Observations

Neumayer

Reanalysis

Belgrano

Reanalysis

Edward Land

Reanalysis

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ERA-Interim Verification

A

Synthesis of Antarctic Temperatures

(CHAPMAN et al., 2006)

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Future of West Antarctica?

Bromwich et al. 2012

Black dots denote permanet stations

with long-term temperature

records.

Warming of the Antarctic Peninsular is well

monitored by measurements.

Long-term observations in West Antarctica

are missing.

(41)

Future of West Antarctica?

Bromwich et al. 2012

Time series from Byrd Station is a composite of man made measurements (1957-1975), AWS data, reanalysises and spatial interpolations

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Future of West Antarctica?

Bromwich et al. 2012

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Summary:

•In situ data are strongly needed from nowcasting till climate monitoring.

•Permanently occupied station are extremely rare but most important.

•Well maintained AWS can be useful to close in situ data gaps.

•West Antarctic temperature changes are still uncertain.

•Do not take products from reanalysis's as reality!

•Models need to be verified using in situ data (not reanalysis's).

•Further model improvements are needed.

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Polar prediction stays challenging

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