British Antarctic Survey Automatic Weather Station...
Transcript of British Antarctic Survey Automatic Weather Station...
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BritishAntarcticSurvey
AutomaticWeatherStationNetwork2017/18SeasonReview
MairiSimms,SteveColwell,Rosey Grant,DanRylett
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TheSummer2017/18Team
Rothera Halley
MairiSimms JonShanklinDanRylett Tom“Barney”Barningham
Thankstothewholeteamfortheireffortsthispastseason!
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Rothera
ButlerIsland
FossilBluff
LimbertSkyBlu
Baldrick
HalleySites
BASmannedstation
BASAWS
BASmannedstation(summeronly)
BASAWSNetwork
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ØAWSatHalleyV
ØAWSatHalley6sendingSYNOPStoGTS
ØAWSatHalleySite6a
BASAWSNetworkStartofthe2017/18season
HalleyVsite
Halley6asite
Halley6site
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Koni Steffan AWS
BASmannedstation
BASAWS
BASmannedstation(summeronly)
AWSNetwork
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+ Non-BASAWSIMAUSites(UniversityofUtrecht)
DismalIsland(UniversityofWisconsin)
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• CapabilityofsendingSYNOPStoGTS
• Nocapabilityatthistime
AWSNetwork
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Ø Propvane, sonic ranging snow accumulation sensor, HMP temperature andhumidity sensor, PRT air temperature sensor, pressure sensor
Ø Powered by two or four x 100Ah 12V batteries (buried), charged by solarpanel.
Ø Campbell Scientific CR1000 data loggers.
Ø 10 minute averaged data saved to card.
Ø 10 minute averaged data are transmitted via SBD Iridium every three hours.
Ø Complete data set is sent via Iridium once a week.
BASAWSNetwork
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Ø FossilBluff– Condensationinloggerbox
Ø Limbert – Wholesystem(includingbatteries)replaced.
ØPeninsulastations– UpdatedloggertothelatestOSandrewiredsothatthemodemisn’tconnectedtotheRS232port.
ØRaisedanycablesstoredbelowloggerbox
Instrumentsraised,SR50replaced
Mastraisedandnewsysteminstalled
Serviced
Condensationinloggerbox
BASAWSNetworkWorkCarriedout2017/18
Notvisited
Relocations
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Limbert AWS
Ø Triedtoraisepreviousseasonbutwindprovedtoomuch.
Ø Wasinneedofaraise!
Ø Serviceovertwodays
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BASAWSNetworkWorkCarriedout2017/18
OveratHalley….
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ØHalleyV– Movedto5kmEastofCASLab
ØHalley6– MovedtoCASLab(sendingSYNOPStoGTS)
ØHalley6a– Remained
HalleyVsite
Halley6asite
CASLab
Chasm1
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1950 1960 1970 1980 1990 2000 2010 2020
Halley
Halley1-3 Halley4 Halley5 Halley6
Linear(Halley1-3) Linear(Halley4) Linear(Halley5) Linear(Halley6)
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1950 1960 1970 1980 1990 2000 2010 2020
Halley
Ø Takingdifferentsitesseparately–seeanindividualwarmingtrend
Ø Steppedcoolingbecausestationsaremovedfurtherinland
Ø Whenalldataisaddedtogetherfromallsites- gradualcoolingtrend
Ø Soaddingthedatatogetherfromvarioussitesmaygivefalsecooling….
HalleyTemperatureRecord
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iWS14iWS18
Non-BASAWSNetworkWorkCarriedout2017/18
UniversityofUtrecht- IMAU
Ø iWS 14(Larsen)– swappediWS unitØ iWS 18(CabinetInlet)– swappediWS unit
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iWS 14
iWS 18
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UniversityofUtrecht- IMAU
Ø iWS 14(Larsen)– swappediWS unitØ iWS 18(CabinetInlet)– swappediWS unit
Ø Thermocouplebroken– veryfragile– triallingifdifferentorientationworks(upinsteadofdown)
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CurrentAWSStatus
Wind Temperature Pressure Humidity SnowDepthFossilBluffButlerIsland NotWorkingSkyBlu NotWorkingLimbert IntermittentHalleySites 6aBaldrickKoniSteffanAWS NotWorkingiWS14iWS18
AWS Sensors Power Iridium SBD
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Intentionsfor2018/19season
BASAWS
Ø FossilBluff– Investigateloggerbox moistureØ SkyBlu – InvestigateIridiumproblems,raise?Ø ButlerIsland– InvestigateIridiumproblems,raise?Ø HalleySites– Changebatteriesat6a?
UniversityofUtrecht- IMAU
Ø iWS14– SwapiWS unitØ iWS18– SwapiWS unit
SwapiWS units
Raise?
Service
Raise?
Changebatteriesat6a
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Rothera Vaisala RadiosondeTrial
Ø Launching5balloonlaunchesaweek
Ø Aimforonetobeaduallaunch(tworadiosondes,onebigballoon)
Ø Runningforapproximatelyayearorwhenstocksrunout
Ø ChangetonewsystemandnewRS41sondes attheendofthetrial
RS41
RS92
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Rothera Vaisala RadiosondeTrial
Ø Launching5balloonlaunchesaweek
Ø Aimforonetobeaduallaunch(tworadiosondes,onebigballoon)
Ø Runningforapproximatelyayearorwhenstocksrunout
Ø ChangetonewsystemandnewRS41sondes attheendofthetrial
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RotheraDualBalloon
LaunchTrials
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Thankyou
PhotoCredit:ScottWebster