25 | | == External Links == |
| 30 | == Getting data from the Met Office == |
| 31 | The start dumps are now stored in MASS, which can be accessed via MONSooN or JASMIN using the MOOSE interface. |
| 32 | |
| 33 | Instructions for setting up external access to MASS from JASMIN are available on the [http://collab.metoffice.gov.uk/twiki/bin/view/Support/ExMASSUserSetUpGuide Collaboration Twiki]. |
| 34 | |
| 35 | To get data for 28/Sep/2011 we would type, |
| 36 | |
| 37 | {{{ |
| 38 | moo get moose:/opfc/atm/global/rerun/201109.file/20110928_qwqg00.T+0 . |
| 39 | }}} |
| 40 | |
| 41 | |
| 42 | (Note the dot). This takes about 15 to 20 minutes. |
| 43 | |
| 44 | To find out whether the data exists, |
| 45 | |
| 46 | {{{ |
| 47 | moo ls moose:/opfc/atm/global/rerun/201109.file |
| 48 | }}} |
| 49 | |
| 50 | Generally we prefer to get the output from the global runs - these have "qwqg" in the title; otherwise we get the global update - these have "qwqu" in the file name. |
| 51 | |
| 52 | For further information on using MOOSE on MONSooN and JASMIN see: [http://collab.metoffice.gov.uk/twiki/bin/view/Support/MooseOnMonsoon Getting started with MOOSE on MONSooN and JASMIN]. |
| 53 | |
| 54 | === Older files === |
| 55 | Older files are stored in a packed archive format - these have the extension ".pax". These usually contain several dumps and have names like, |
| 56 | |
| 57 | coprr.udQU06.20060721.pax |
| 58 | |
| 59 | |
| 60 | where the "ud" denotes "unified model dump" and QU06 denotes global update output at 06Z. These have to be unpacked and the files relabelled. There is a script to do this in |
| 61 | |
| 62 | {{{ |
| 63 | |
| 64 | #!/bin/ksh |
| 65 | # i will be like coprr.udQU06.20060725.pax |
| 66 | for i in *.pax |
| 67 | do |
| 68 | print $i |
| 69 | dat=${i%.*} # take .pax off the end |
| 70 | datestring=${dat##*.} # remove bit to left of the rightmost dot |
| 71 | pax -r -f $i |
| 72 | cd opdaily/datawgl |
| 73 | for j in * |
| 74 | do |
| 75 | mv $j $TMPDIR/${datestring}_$j |
| 76 | done |
| 77 | cd - |
| 78 | done |
| 79 | }}} |
| 80 | |
| 81 | |
| 82 | This assumes a list of pax files and unpacks, relabels and stores the results in $TMPDIR. |
| 83 | |
| 84 | |
| 85 | === UKV start dumps === |
| 86 | |
| 87 | The UKV start dumps are in MASS with path names of the type: |
| 88 | |
| 89 | moose:/opfc/atm/ukv/rerun/201108.file/20110810_qwqv03.T+1 |
| 90 | |
| 91 | moose:/opfc/atm/ukv/rerun/201108.file/20110810_qwqv06.T+1 etc... |
| 92 | |
| 93 | |
| 94 | === UKV forecasts and analyses === |
| 95 | |
| 96 | The UKV forecasts and analyses are in the MASS with path names of the type |
| 97 | |
| 98 | moose:/opfc/atm/ukv/prodm/YYYY.pp/prodm_op_ukv_YYYYMMDD_AA_NNN.pp for the multilevel fields and |
| 99 | |
| 100 | moose:/opfc/atm/ukv/prods/YYYY.pp/prods_op_ukv_YYYYMMDD_AA_NNN.pp |
| 101 | |
| 102 | where YYYY = year e.g. 2011, MM = month e.g. 05, DD = day e.g. 21 AA = analysis time = 03, 09, 15 or 21 NNN = the part of the forecast - goes up in two's from 000 to 036. e.g. 000, 002, 004 .... 036 |
| 103 | |
| 104 | |
| 105 | === MOGREPS-R files === |
| 106 | |
| 107 | Ensemble fields are in: |
| 108 | |
| 109 | moose:/opfc/atm/mogreps-g/rerun/YYYYMM.file moose:/opfc/atm/mogreps-r/rerun/YYYYMM.file |
| 110 | |
| 111 | Where YYYY = year e.g. 2011, MM = month e.g. 07 |
| 112 | |
| 113 | At minimum, to re-run MOGREPS-R you need the analysis files in the mogreps-r path: E.g. 20110722_qwqy06.T+0.18km 20110722_qwqy18.T+0.18km |
| 114 | |
| 115 | And all the perturbations files E.g. 20110722_perts.qwey06.oper??.pp1 where ?? Goes from 00 to 23 members. |
| 116 | |
| 117 | Also in the mogreps-g path you need the boundary files: E.g. 20110722_qweg00.oper??.FRAMES.EY.tar.gz. |
| 118 | |
| 119 | |
| 120 | |
| 121 | == Getting data from ECMWF == |
| 122 | The standard data I provide is from ECMWF's operational data. It is a deterministic forecast from the atmospheric model, version 1, analysis. It is not ERA. |
| 123 | Data prior to X is in GRIB1 format, after that it is GRIB2. The GRIB start dumps are created by concatenating the following fields: |
| 124 | |
| 125 | * skin temperature, |
| 126 | * surface pressure, |
| 127 | * land-sea mask, |
| 128 | * geo-potential, |
| 129 | * temperature, |
| 130 | * specific humidity, |
| 131 | * U and V wind velocities |
| 132 | |
| 133 | In contrast a UM dump contains typically a hundred fields. So the GRIB start dumps need to be reconfigured |
| 134 | |
| 135 | |
| 136 | = External Links = |