New ERA5 Vtable

ungrib/Variable_Tables/README

@@ -21,6 +21,8 @@ Vtable.ECMWF_sigma         ECMWF sigma-level output
 Vtable.ERA-interim.ml           ERA interim model level
 Vtable.ERA-interim.pl           ERA interim pressure level output
 
+Vtable.ERA5.pl             ERA5 single level and pressure level data from the Climate Data Store 
+
 Vtable.GFDL                Grib 1 legacy Vtable for NOAA GFDL 
 Vtable.GFS                 NCEP Global Forecast System (can also be used for GDAS, FNL, AVN files)
 Vtable.GFSENS              NCEP GFS ensemble files (GEFS)

ungrib/Variable_Tables/Vtable.ERA5.pl

@@ -0,0 +1,83 @@
+GRIB1| Level| From |  To  | metgrid  | metgrid  | metgrid                                  |GRIB2|GRIB2|GRIB2|GRIB2|
+Param| Type |Level1|Level2| Name     | Units    | Description                              |Discp|Catgy|Param|Level|
+-----+------+------+------+----------+----------+------------------------------------------+-----+-----+-----+-----+
+ 129 | 100  |   *  |      | GEOPT    | m2 s-2   |                                          |   0 |   3 |   4 | 100 |
+ 156 | 100  |   *  |      | HGT      | m        | Geopotential Height                      |   0 |   3 |   5 | 100 |
+ 130 | 100  |   *  |      | TT       | K        | Temperature                              |   0 |   0 |   0 | 100 |
+ 131 | 100  |   *  |      | UU       | m s-1    | U                                        |   0 |   2 |   2 | 100 |
+ 132 | 100  |   *  |      | VV       | m s-1    | V                                        |   0 |   2 |   3 | 100 |
+ 157 | 100  |   *  |      | RH       | %        | Relative Humidity                        |   0 |   1 |   1 | 100 |
+ 165 |  1   |   0  |      | UU       | m s-1    | U                    At 10 m             |   0 |   2 |   2 | 103 |
+ 166 |  1   |   0  |      | VV       | m s-1    | V                    At 10 m             |   0 |   2 |   3 | 103 |
+ 167 |  1   |   0  |      | TT       | K        | Temperature          At  2 m             |   0 |   0 |   0 | 103 |
+ 168 |  1   |   0  |      | DEWPT    | K        |                                          |   0 |   0 |   6 | 103 |
+     |  1   |   0  |      | RH       | %        | Relative Humidity    At  2 m             |   0 |   1 |   1 | 103 |
+ 172 |  1   |   0  |      | LANDSEA  | 0/1 Flag | Land/Sea Flag                            |   2 |   0 |   0 |   1 |
+ 129 |  1   |   0  |      | SOILGEO  | m2 s-2   |                                          |   0 |   3 |   4 | 100 |
+ 156 |  1   |   0  |      | SOILHGT  | m        | Geopotential Height - Surface            |   0 |   3 |   5 | 100 |
+ 134 |  1   |   0  |      | PSFC     | Pa       | Surface Pressure                         |   0 |   3 |   0 |   1 |
+ 151 |  1   |   0  |      | PMSL     | Pa       | Sea-Level Pressure                       |   0 |   3 |   0 | 101 |
+ 235 |  1   |   0  |      | SKINTEMP | K        | Earth-Surface Temperature                |   0 |   0 |  17 |   1 |
+  31 |  1   |   0  |      | SEAICE   | 0/1 Flag | Sea-Ice-Flag                             |  10 |   2 |   0 |   1 |
+  34 |  1   |   0  |      | SST      | K        | Sea-Surface Temperature                  |  10 |   3 |   0 |   1 |
+ 141 |  1   |   0  |      | SNOW_EC  | m        |                                          |   0 |   1 | 254 | 101 |
+     |  1   |   0  |      | SNOW     | kg m-2   | Water Equivalent of Snow Depth           |     |     |     |     |
+ 139 | 112  |   0  |   7  | ST000007 | K        | T of 0-7 cm ground layer                 | 192 | 128 | 139 | 106 |
+ 170 | 112  |   7  |  28  | ST007028 | K        | T of 7-28 cm ground layer                | 192 | 128 | 170 | 106 |
+ 183 | 112  |  28  | 100  | ST028100 | K        | T of 28-100 cm ground layer              | 192 | 128 | 183 | 106 |
+ 236 | 112  | 100  | 255  | ST100289 | K        | T of 100-289 cm ground layer             | 192 | 128 | 236 | 106 |
+  39 | 112  |   0  |   7  | SM000007 | fraction | Soil moisture of 0-7 cm ground layer     | 192 | 128 |  39 | 106 |
+  40 | 112  |   7  |  28  | SM007028 | fraction | Soil moisture of 7-28 cm ground layer    | 192 | 128 |  40 | 106 |
+  41 | 112  |  28  | 100  | SM028100 | fraction | Soil moisture of 28-100 cm ground layer  | 192 | 128 |  41 | 106 |
+  42 | 112  | 100  | 255  | SM100289 | fraction | Soil moisture of 100-289 cm ground layer | 192 | 128 |  42 | 106 |
+-----+------+------+------+----------+----------+------------------------------------------+-----+-----+-----+-----+
+#
+# This Vtable is designed to be used with the ERA5 data provided on single levels and pressure levels by the
+# Climate Data Store (CDS) at the following 2 links:
+# Single Level Data: https://cds.climate.copernicus.eu/datasets/reanalysis-era5-single-levels?tab=overview
+# Pressure Level Data: https://cds.climate.copernicus.eu/datasets/reanalysis-era5-pressure-levels?tab=overview
+#
+# Grib codes are from ECMWF Parameter Database: https://codes.ecmwf.int/grib/param-db/
+# Note that some of the above parameters do not have a description written in the "metgrid Description" column
+# because we do not want to write these fields to the intermediate files.
+#
+# In rrpr.F:
+# "HGT" is calculated from "GEOPT"
+# "SOILHGT" is calculated from "SOILGEO"
+# "RH" (at 2 m) is calculated from "DEWPT"
+# "SNOW" is calculated from "SNOW_EC"
+#
+# ERA5 is based on 4D-Var data assimilation using Cycle 41r2 of the Integrated Forecasting System (IFS),
+# which was operational at ECMWF in 2016.
+#
+# The names of all the parameters listed in the table above (that need to be downloaded from the CDS) have the
+# following human readable names associated with their ID (first column) in the CDS:
+#
+# Pressure Levels:
+# 129 = Geopotential
+# 130 = Temperature
+# 131 = U-component of wind
+# 132 = V-component of wind
+# 157 = Relative humidity
+#
+# Single Levels:
+# 165 = 10m u-component of wind
+# 166 = 10m v-component of wind
+# 167 = 2m temperature
+# 168 = 2m dewpoint temperature
+# 172 = Land-sea mask
+# 129 = Geopotential
+# 134 = Surface pressure
+# 151 = Mean sea level pressure
+# 235 = Skin temperature
+#  31 = Sea-ice cover
+#  34 = Sea surface temperature
+# 141 = Snow depth
+# 139 = Soil temperature level 1
+# 170 = Soil temperature level 2
+# 183 = Soil temperature level 3
+# 236 = Soil temperature level 4
+#  39 = Volumetric soil water layer 1
+#  40 = Volumetric soil water layer 2
+#  41 = Volumetric soil water layer 3
+#  42 = Volumetric soil water layer 4