Workshop Agenda

0
0
2016 days ago, 704 views
PowerPoint PPT Presentation

Presentation Transcript

Slide 1

Workshop Agenda PC-HYSPLIT WORKSHOP

Slide 2

METEOROLOGICAL DATA 2-2 PC-HYSPLIT WORKSHOP

Slide 3

Meteorological Data Introduction HYSPLIT requires at least, u,v,w,T,P sfc , and H if on weight surfaces in three measurements (RH or Q are discretionary) Meteorological information are uniquely arranged to minimize execution time Compressed double Fields are composed at every level for one day and age, then rehashed as required in time All estimate information as of now accessible in HYSPLIT menus starts from NOAA's National Centers for Environmental Prediction (NCEP) Forecast or Analysis Registration is required to run HYSPLIT scattering with figure information Data is accessible comprehensively and provincially over North America & Hawaii PC HYSPLIT downloads information specifically from the NOAA ARL ftp server; choices are accessible to change to other FTP servers ( NCEP ) 2-3 PC-HYSPLIT WORKSHOP

Slide 4

Meteorological Data Forecast Meteorological Data: North American Meso ( NAM ) Rapid Update Cycle ( RUC ) Global Forecast System ( GFS ) Analysis Meteorological Data: North American Meso ( NAM ) NAM Data Assimilation System ( NDAS , previously EDAS ) Global Data Assimilation System ( GDAS , once in the past FNL ) Global Reanalysis For more data, see the accompanying sites: http://ready.arl.noaa.gov/READYmetdata.php http://ready.arl.noaa.gov/archives.php http://www.nco.ncep.noaa.gov/pmb/items/2-4 PC-HYSPLIT WORKSHOP

Slide 5

Meteorological Data NAM Meteorological Data: Regional conjecture display – utilized as a part of most HYSPLIT model keeps running over U.S. Upgraded like clockwork namf – CONUS, 12 km, 3 hrly, weight levels, 48h gauge namf40 – CONUS, 40 km, 3 hrly, weight levels, 84h figure namakf – Alaska, 45 km, 3 hrly, weight levels, 36h conjecture namsf.XXtile – 4 U.S. quadrants, 12 km, 1 hrly, sigma levels, 48h figure namsf.AK – Alaska,12 km, 1 hrly, sigma levels, 48h gauge namsf.HI – Hawaii, 12 km, 1 hrly, sigma levels, 48h conjecture Nam12/NAMs – CONUS, 12 km, 3 hrly, P & S levels, day by day chronicle of estimates NDAS (EDAS) – 40 km (80km <2004), 3 hrly, weight, file (examination + conjecture) NAM 12 km Alaska 45 km 2-5 PC-HYSPLIT WORKSHOP

Slide 6

Meteorological Data RUC Meteorological Data: Rapid Update Cycle figure display – valuable for quickly changing conditions Incorporates radar, satellite, air ship, surface, upper-air perceptions Updated at regular intervals ruc – CONUS, 20 km, 1 hrly, weight levels, 12h gauge RUC 20 km 2-6 PC-HYSPLIT WORKSHOP

Slide 7

Meteorological Data GFS Meteorological Data: Global Forecast System show – Global scope Updated like clockwork gfsf – 1 degree (~111 km), 3 hrly, weight levels, 180h conjecture gfslrf – 2.5 degree (~277km), 12 hrly, weight levels, 180-384 conjecture hours GDAS (>12/2004) – 1 degree, 3 hrly, weight levels, file (investigation + gauges) GDAS (>8/2007) – 0.5 degree, 3 hrly, cross breed levels, file (examination + gauges) FNL (1997-2006) – 191 km, 6 hrly, weight levels, file (investigation + figure) GFS 2-7 PC-HYSPLIT WORKSHOP

Slide 8

Meteorological Data Global Reanalysis Meteorological Data: Global scope from 1948 to ~present NCEP & NCAR reran GFS for the past Used basically to run occasions preceding model information accessibility reanalysis – 2.5 degree (~277 km), 6 hrly, weight levels, file Global reanalysis 2-8 PC-HYSPLIT WORKSHOP

Slide 9

Data Requirements File qualities and projection HYSPLIT requires that meteorological information fields be: anticipated on a conformal delineate (Polar Stereographic, Lambert, or Mercator) or a general scope longitude framework, sorted out with one record for every variable per level and all records must have a similar record length, written in a forward time arrangement. More points of interest on the configuration and pressing of the meteorological information can be found in the HYSPLIT User's Guide . The \exec catalog contains a few order line programs ( chk_data.exe , chk_rec.exe ) that can be utilized to dissect a HYSPLIT good meteorological information document. chk_file.exe has been joined into a HYSPLIT GUI under the Meteorology/Display Data menu. PC-HYSPLIT WORKSHOP

Slide 10

Data Requirements Running Check File prompts the client for the area of a HYSPLIT perfect dataset. (Take note of: its best to store all HYSPLIT good information sets in a catalog whose name does not contain spaces as these can now and again befuddle the TCL scripts). An example of area 1 of the full yield from Check File ( chk_file.exe ) is appeared (ok) for the 40 km NAM figure record from February 17, 2009, 1200 UTC. (Take note of: the source code for chk_file can be found in \examples\source and can be utilized to create different projects that need to peruse the meteorological information). PC-HYSPLIT WORKSHOP

Slide 11

Data Requirements Meteorological Variables A one of a kind 4-character string recognizes meteorological factors. Least necessities to run the model are the U and V wind segments ( UWND , VWND ), surrounding temperature ( TEMP ), tallness ( HGTS ) of the information level (if on weight facilitates), and the surface weight ( PRSS ). A specimen concentrate of segment 2 of the chk_file program is appeared beneath for the NAM 40 km dataset for levels between the surface and 925 hPa. List Level # Variable posting and checksum values..... 5 925.0000 7 UWND 35 VWND 75 HGTS 204 TEMP 24 WWND 238 RELH 222 TKEN 25 4 950.0000 7 UWND 162 VWND 65 HGTS 219 TEMP 184 WWND 254 RELH 43 TKEN 174 3 975.0000 7 UWND 107 VWND 157 HGTS 139 TEMP 57 WWND 244 RELH 5 TKEN 49 2 1000.0000 7 UWND 237 VWND 191 HGTS 192 TEMP 209 WWND 193 RELH 30 TKEN 135 1 0.0000 32 MSLP 41 TMPS 232 TPP3 180 CPP3 180 SOLT 28 SOLW 136 T02M 118 RH2M 87 U10M 28 V10M 253 P10M 217 PRSS 195 WESD 172 CSNO 118 CICE 180 CFZR 180 CRAI 118 LHTF 3 SHTF 165 USTR 87 VSBY 227 RGHS 97 LCLD 83 MCLD 234 HCLD 8 TCLD 176 DSWF 166 WTMP 1 CAPE 203 CINH 144 LISD 116 LIB4 191 PC-HYSPLIT WORKSHOP

Slide 12

Data Requirements Data Records Each information record is made out of a 50 byte ASCII header parcel, depicting the information pressing, trailed by the stuffed information of length (I*J bytes). One-byte per component "contrast pressing" is utilized for all information fields. The principal information record ( INDX ) of every day and age contains data on the factors, levels, matrix, and checksums to take after. A concentrate of the last area from chk_file is appeared underneath for the NAM 40 km information set. # YYMMDDHHFHLLGG FLD EXP PRECISION VAR(1,1) 1 9 21712 0 018 INDX 0 0.0000000E+00 2 9 21712 0 018 MSLP 4 0.6299213E-01 0.1014420E+04 3 9 21712 0 018 TMPS 5 0.1259843E+00 0.2988067E+03 4 9 21712 0 018 TPP3 1 0.7874016E-02 0.0000000E+00 5 9 21712 0 018 CPP3 1 0.7874016E-02 0.0000000E+00 6 9 21712 0 018 SOLT 5 0.1259843E+00 0.2730887E+03 7 9 21712 0 018 SOLW 10 0.4031496E+01 0.1000000E+04 8 9 21712 0 018 T02M 4 0.6299213E-01 0.2977927E+03 9 21712 0 018 RH2M 6 0.2519685E+00 0.8214149E+02 10 9 21712 0 018 U10M 3 0.3149606E-01 -0.9052811E+01 11 9 21712 0 018 V10M 4 0.6299213E-01 -0.2805954E+01 12 9 21712 0 018 P10M 4 0.6299213E-01 0.2964305E+03 13 9 21712 0 018 PRSS 8 0.1007874E+01 0.1014287E+04 14 9 21712 0 018 WESD 9 0.2015748E+01 0.0000000E+00 15 9 21712 0 018 CSNO 1 0.7874016E-02 0.0000000E+00 16 9 21712 0 018 CICE 1 0.7874016E-02 0.0000000E+00 17 9 21712 0 018 CFZR 1 0.7874016E-02 0.0000000E+00 18 9 21712 0 018 CRAI 1 0.7874016E-02 0.0000000E+00 19 9 21712 0 018 LHTF 10 0.4031496E+01 0.1704460E+03 20 9 21712 0 018 SHTF 9 0.2015748E+01 0.1664436E+02 21 9 21712 0 018 USTR 0 0.3937008E-02 0.3633987E+00 22 9 21712 0 018 VSBY 15 0.1290079E+03 0.2403518E+05 23 9 21712 0 018 RGHS 2 0.1574803E-01 0.2000000E-02 24 9 21712 0 018 LCLD 7 0.5039370E+00 0.1000000E+02 ........ Definitions: YYMMDDHH = date/time (UTC) FH = conjecture hour LL = vertical level GG = matrix number FLD = field mark EXP = scaling example PREC = accuracy of stuffed information VAR(1,1) = information esteem at (1,1) PC-HYSPLIT WORKSHOP

Slide 13

Forecast Data Access Forecast Data Forecast meteorological information, officially changed over from standard GRIB configuration to the HYSPLIT perfect arrangement, can be helpfully downloaded utilizing the ARL Data FTP and Forecast submenus of the Meteorology menu. The client can download the latest four figure runs (cycles). The RUC model is right now accessible eight times each day. Every single meteorological dat are recovered as a matter of course from the Air Resources Laboratory's FTP server ( arlftp.arlhq.noaa.gov ). The submenu choice Set Server permits the client to change to an other ARL FTP server ( gus.arlhq.noaa.gov is no more drawn out accessible), to a reinforcement NOAA NCEP operational FTP server ( ftpprd.ncep.noaa.gov ) or to client indicated FTP server and catalog containing HYSPLIT good meteorological documents. PC-HYSPLIT WORKSHOP

Slide 14

Forecast Data Access Processed Forecast Data The conjecture information on the ARL server covers 4 spaces: North America * NAM (North American Mesoscale - 12 and 40 km), * NAM (12 km sigma in four tiles – NE, SE, SW, NW) * RUC (Rapid Update Cycle - 20 km) Alaska * NAM (12 km sigma level and 45 km weight level information) Hawaii * NAM (12 km sigma level information) Global scope longitude lattices * GFSF - 1 degree, 3 hourly to +180 hours, * GFSLR - 2.5 degree, 12 hourly from +180 to +360 hours, * GFS0P5F – 0.5 degree, 3 hourly to +84 hours. Before selecting Get Data File , a substantial Email advertisement

SPONSORS