marie-claire ten veldhuis ro#erdam urban hydro
TRANSCRIPT
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Ro#erdam urban hydro-meteorological observatory
Marie-clairetenVeldhuisj.a.e.tenveldhuis@tudel5.nlHermanRusschenbergMarcSchleissNickvandeGiesenRobertBanksXinTianElenaCrisEanoAndreasKrietemeyer
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Hydro-Meteo-observatory Rotterdam Objec&ves:
• Measuringsmall-scalerainfallvariability• Short-termhighresoluEonrainfallforecasEng
(nowcasEng)• NumericalweatherpredicEonandrainfallforecasEng• Hydrologicalresponseanalysisandearly-warningPartners:TUDel5:DepsWatermanagement;Geosciences&RemoteSensing;MicroelectronicsRoTerdamCity:Watermanagement;ClimateResilienceProgram
Industrialpartners:SkyEcho,RHDHV
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Hydro-Meteo-observatory Rotterdam
EU-fundingsupportandinterna&onalcollabora&on:• MUFFIN(MulE-scaleUrbanFloodForecastINg)• FLoodCiESense(EarlywarningserviceforurbanpluvialfloodsforandbyciEzensandcityauthoriEes)
• BRIGAID(BridgingtheGapforInnovaEonsinDisasterResilience)
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Hydro-meteorologicalobservaEonnetworkRoTerdamregion40km–30km–20km–10km–5kmrangefromradarposiEon(RoTerdamcitycentre)
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Hydro-meteorologicalobservaEonnetworkRoTerdamregion40km–30km–20km–10km–5kmrangefromradarposiEon(RoTerdamcitycentre)
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Hydro-meteorologicalobservaEonnetworkRoTerdamregion40km–30km–20km–10km–5kmrangefromradarposiEon(RoTerdamcitycentre)
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Hydro-meteorologicalobservaEonnetworkRoTerdamregion40km–30km–20km–10km–5kmrangefromradarposiEon(RoTerdamcitycentre)
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Hydro-meteorologicalobservaEonnetworkRoTerdamregion40km–30km–20km–10km–5kmrangefromradarposiEon(RoTerdamcitycentre)
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Available instrumentation - PolarimetricXbandradar- MRR:verEcalprofilingradar- WeatherstaEons:8operaEonal(Campbell)+5addiEonaltobe
installed(Davis)- GNSSreceiversforwatervapouresEmaEon:4singlefrequency,
14dualfrequency(fromNov.2017)- 50-60AmateurweatherstaEons(Netatmo,Wunderground)- 6Disdrometers(installedonpumpingstaEons,statusunder
invesEgaEon)- 20Waterlevelsensorsatoverflowweirs- 100+waterlevel/flowsensorsatpumpingstaEons
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Polarimetric X-band radar Somenumbers:- AlEtuderadar:156m- Blindzonenearradar
(minrange):200m- 1fullPPI/min
(6degreespersecond)- constantelevaEonangle(1.4°)- beamwidth2.5degrees- FMCWradar:frequencyexcursions5-50MHz- 20mrangeresoluEon((range3-30mfor50-5MHz)- maxrange:30km- Dataformats:1minNetCDF
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Pixelsurfacearea:100m2
RadaralEtude=156m
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Polarimetric X-band radar Rainfalles&ma&on:- viaspecificdifferenEalphase(KDP)- viaradarreflecEvity(R)- interpolated
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RadarPPIReflecEonHH18Aug2017,9.39-9.48h
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MRR: vertical profiling radar
ObjecEves:- Preciselymeasure
hydrometeorsfromurbanrainfalleventswithhighver&calandspa&alresolu&on
- learnmoreaboutthedropsizedistribuEon,liquidwatercontentandrainrateforhigh-impactevents
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Liqu
idW
aterCon
tent(g/m
3)
VerEcalrange(m
asl)
Ver&calprofileofLiquidWaterContent:Productoftotalvolumeofalldropletswithdensityofwater,dividedbythescaTeringvolume- 0-4000mverEcal
range- Over60minEme
Rainra
te(m
m/h)
Rainrate:derivedfromliquidwatercontentandfallvelocity(Dopplerspectra)
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Network of weather stations
Campbell(HQ)Davis(MQ) Netatmo(LQ)
Disdrometers(?)
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Network of weather stations www.weather.tudel5.nl
Rainfall:retrievalofEppingEmesDatacommunica&on:LoRa(LongRange,wirelessdatacommunicaEon)
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Network of personal weather stations
#Insert1or2quicklooksfromMRRBriefdescripEonofparametersmeasuredObjecEveofinstrument?
Ongoingwork2017-2018:DevelopmentofdataqualityalgorithmforPWSrainfalldataIncollaboraEonwith:• KNMI• WageningenUniversity
Weatheramateurnetworks:personalweatherstaEondata(PWS)
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Hydrological response analysis
- WaterlevelsensorsatCSOs:21locaEons,in13sewerdistricts
- FloodobservaEonsbyciEzens(callcentredata)
- Impactofgreen-bluesoluEons:greenroofs,permeablepavements,bio-retenEon/raingardens
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Waterlevelsatcso-weirs-ResponseEmeanalysis,preliminaryconclusions:- RTvariesbetween<1to>4h(25-75%
range)- NosignificantcorrelaEonswitharea
size,imp.degree
Figures:ResponseEmeanalysis;waterlevel(blue),rainfall(red)(ExampleforDistrict5,3events)
Courtesy:Mar-jnMulder,MScstudentTUDel8
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Crowdsourcing: citizens’ flood observations
ObjecEve:toidenEfycriEcalthresholdsforearlywarning
Courtesy:Chris-anBouwens,MScstudentTUDel8Densityoffloodreports,2010-2016
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Hydrological response analysis : Overflow pumping
ObjecEve:toidenEfycriEcalthresholdsforearlywarning
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RaingaugeWaterlevel
sensor
PumpingstaEon
Studyarea:1.32km2
Impact of green-blue solutions
3-monthstudyperiod:10Oct-10Dec2016,mildrainfallevents(noCSOoverflows)
Courtesy:JackHill,visi-ngstudentUnivofMelbourne
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Impact of green-blue solutions
3-monthstudyperiod:10Oct-10Dec2016
%TotalimplementaEon:areaimplemented/totalarea
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Impact of green-blue solutions
%TotalimplementaEon:areaimplemented/totalarea
Flowvariability(expressedasSTD)
%PeakrunoffreducEon:Q_99%-ile(x%impl)/Q_99%-ile(0%impl)
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Impact of green-blue solutions
Somepreliminaryconclusions:- greenroofsandpermeablepavementsmore
effecEvethanbioretenEon(largerstoragecapacity)
- locaEonofimplementaEonisimportant:largerimpactclosetosystemoutletthanfarfromsystemoutlet
1-2-3June2018
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Hydro-Meteo-observatory Rotterdam
Futurework• Analysingsmall-scalerainfallvariability,space-Eme
characterisEcs• ObtainhighaccuracyrainfallesEmates• Developearly-warningtooltosupporturbanflood
response(low-costrainfallsensors,ciEzenscienceproject)• Hydrologicalresponseanalysis:predictorsforpeakflow
variability,runoffraEos,impactofimperviousnessandgreenbluesoluEons
• Short-termhighresoluEonrainfallforecasEng(nowcasEng)• NumericalweatherpredicEon:WRFforurbanenvironment
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MercidevotreaJen&on
Thankyou!
HermanRusschenberg,MarcSchleiss,NickvandeGiesen,RobertBanks,XinTian,ElenaCrisEano,AndreasKrietemeyer
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Backupslides
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NaEonalWeatherRadar PolarimetricX-bandradar1x1km2,5-15min 100x100km2,1min
Courtesy:KNMI Courtesy:H.W.J.Russchenberg
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