Data pool documentation Status

Transcription

1 Deutscher Wetterdienst Data pool documentation Status C. Heret / DWD ( ) ( )

2 Data set documentation Parameter names unified parameter names and units for all sites standard time resolution 10 m quality flags for all parameters Q_ if provided with the data g i good quality interpolated or simulated value or replaced by other systems d dubious value u unchecked value b bad m missing 9 quality flag not available parameter unit profiles between 10 m TAIR<hhh> temperature C and 200 m TD<hhh> dew point C <height in m> additionally: humidity (relative humidity RH [%], specific humidity Q [gkg-1]) WSPEED<hhh> wind speed ms-1 WDIR<hhh> wind direction degree (near-)surface TAIR002 temperature 2 m C TD002 relative humidity 2 m C additionally: humidity in 2 m (relative humidity RH [%], specific humidity Q [gkg-1]) WSPEED010 wind speed 10 m ms-1 WDIR010 wind direction 10 m degree P0 surface pressure hpa RR hourly precipitation sum mm SNOW accumulated snow height cm SNOWN new snow height cm CLC total cloud cover % radiation and energy RSWD incoming solar radiation Wm-2 RSWU reflected solar radiation Wm-2 RLWD incoming thermal radiation Wm-2 RLWU outgoing thermal radiation Wm-2 RN or - if components are not available - net radiation Wm-2 HS sensible heat flux Wm-2 LE latent heat flux Wm-2 MOM momentum flux Nm-2 USTAR friction velocity ms-1 soil quantities <depth in cm> T0 radiative surface temperature C TSOIL<hhh> soil temperature C MSOIL<hhh> soil moisture content - G0<hhh> soil heat flux Wm-2

3 Site documentation LIN CAB PAY CFM SPC SOD CAR site Lindenberg Meteorological Observatory - Richard Aßmann Observatory (MOL- RAO) Cabauw Experimental Site for Atmospheric Research (CESAR) MeteoSwiss aerological station Payerne description of instruments v 73 v -0.7 Office National d'etudes et des Recherches Aérospatiales 186 (ONERA) Meteorological Site of San Pietro Capofiume v 11 Finnish Meteorological Institute Arctic Research Centre (FMI-ARC) UK Met Office Cardington available at BADC web site mnn soil type local land use land use (10 km) loamy sand Eutric Podzoluvisol clay grass open pasture for at least 400 m 60 % grassland/cropland, 30 % pine forest, 5% settlement, 5 % water 82 % grassland/cropland, 10 % forest, 5 % settlement, 3 % water loamy sand grassland grassland loamy sand CalcariFluvicCambi sols grassland, surrounded by crop grassland 28.2 % coniferous, 23.6 % transitional woodland/shrub, 17.2 % mixed forest, 12.9 % bog, 8.1 % broadleaved forest, 4.8 % water, 5.2 % other

4 quality flags for all parameters Q_ different time resolution *1 30 min *2 60 min *4 24 h if snow exists P RAIN TAIR RH TD TAIR RH TD WSPEED WDIR TAIR RH TD TAIR RH TD WSPEED WDIR TAIR RH TD TAIR RH TD TAIR RH TD WSPEED WDIR RSWD RSWU RLWD RLWU CLC* USTAR* MOM* HS* LE* TSOIL TSOIL TSOIL TSOIL TSOIL TSOIL TSOIL TSOIL TSOIL TSOIL TSOIL TSOIL MSOIL MSOIL MSOIL MSOIL MSOIL MSOIL G G SNOW* SNOWN* LIN

5 different time resolution *2 60 min P RAIN TAIR TD TAIR TD WSPEED WDIR TAIR TD WSPEED WDIR TAIR TD WSPEED WDIR TAIR TD WSPEED WDIR TAIR TD WSPEED WDIR TAIR TD WSPEED WDIR RSWD RSWU RLWD RLWU CLC* USTAR MOM HS LE TSOIL TSOIL TSOIL TSOIL TSOIL TSOIL TSOIL TSOIL TSOIL MSOIL G G G CAB

6 differing time resolution *2 30 min *3 60 min till *4 24 h if snow exists *5 ca 180 min P RAIN TAIR RH TD WSPEED WDIR RSWD RSWU RLWD RLWU CLC* USTAR MOM HS LE TSOIL005* TSOIL010* TSOIL020* SNOW* SNOWN* PAY

7 energy fluxes 2006 and 2007 with questionable data, therefore omitted P RAIN TAIR Q TD WSPEED WDIR RSWD RSWU RLWD RLWU RN CLC USTAR MOM HS LE T0GRASS T0SOIL TSOIL TSOIL TSOIL TSOIL TSOIL MSOIL MSOIL MSOIL MSOIL MSOIL MSOIL MSOIL MSOIL MSOIL MSOIL G CFM time resolution of measured data: 30 min

8 P RAIN TAIR RH TD WSPEED WDIR RSWD RSWU RLWD RLWU CLC USTAR MOM HS LE TSOIL TSOIL TSOIL TSOIL TSOIL TSOIL TSOIL MSOIL MSOIL MSOIL MSOIL MSOIL MSOIL MSOIL SPC

9 soil moisture could not be used caused by dubious conversion factors different time resolution *1 30 min 2007 (11/12) P RAIN TAIR RH TD TAIR RH TD TAIR RH TD WSPEED WDIR TAIR RH TD WSPEED WSPEED TAIR RH TD WSPEED WSPEED TAIR RH TD RSWD RSWU RLWD RLWU CLCL CLCM CLCH USTAR* MOM* HS* LE* SNOW SOD

10 data are available till 11/2009 months with obviously wrong data are omitted completely and will be completed after correction by data providers P RAIN TAIR Q RH TD TAIR Q TD WSPEED WDIR TAIR RH TD WSPEED WDIR TAIR RH TD WSPEED WDIR RSWD RSWU RLWD RLWU T0GRASS TSOIL TSOIL TSOIL TSOIL TSOIL TSOIL TSOIL MSOILW MSOILW MSOILW MSOILW CAR

11 Data set documentation Dew point calculation Water vapour saturation pressure [hpa] Sonntag, D., Advancements in the field of hygrometry, Meteorol. Z., N. F., 3, 51-66, sdd = exp((a1 * tk**(-1) + a2 + a3 * tk + a4* tk**2 + a5 * log(tk))) tk temperature [K] rh relative humidity [%] # ice a 1 = a 2 = a 3 = E-2 a 4 = E-5 a 5 = c 1 = c 2 = c 3 = # water a 1 = a 2 = ; a 3 = E-2 a 4 = E-5 a 5 = c 1 = c 2 = c 3 = Water vapour pressure [hpa] dd=rh/100. * sdd Dew point [ C] td=(c 3 *log(dd/c 1 ))/(c 2 - log(dd/c 1 ))