Changes between Version 4 and Version 5 of FpInputMetGfs

Timestamp:

Nov 3, 2014, 5:29:53 PM (9 years ago)

Author:

saeck

Comment:

--

FpInputMetGfs

@@ -3 +3 @@
 
 
-''This description is kindly provided by Jooil Kim and Bob Dattore (NCAR).''
+''This description is kindly provided by Jooil Kim and Bob Dattore (NCAR) and updated by Michael Schoeppner.''
 
 Now there exists a well-managed source of archived windfields from NCEP for use with FLEXPART. Here are the instructions:
@@ -11 +11 @@
   2. Log in with your ucar account (create one for free if you don't have one yet)
 
-  3. Go to  "'''Data Access'''" -> "'''Internet Download'''"  -> "'''Request a Subset with Format Conversion'''". This opens  a window for choosing a customized subset of the CFSR data.
+  3. Go to  "'''Data Access'''" -> "'''Customizable Data Requests'''"  -> "'''Get a Subset'''". This opens  a window for choosing a customized subset of the CFSR data.
 
-  4. Choose your time period, and select "'''FLEXPART Model Input - 6-hour Forecasts'''" under the oarameter '''presets'''. When done, press the "'''Continue'''" button on the bottom of the page.
+  4. Choose your time period, and select "'''FLEXPART Model Input - 6-hour Forecasts'''" under the parameter '''presets'''. When done, press the "'''Continue'''" button on the bottom of the page.
 
-  5. On the next window, look for the "'''Type of Product'''" menu and select "''all available''", then press the "'''Click Here'''" button to update. Doing this will give you the analysis (H+0) and H+1 to H+6 forecast fields. When done, push the "'''Submit Request'''" button.
+  5. On the next window, look for the "'''Type of Product'''" menu and select "''all available''", then press the "'''Click Here'''" button to update.  . Select all from 1-hour Forecast to 6-hour Forecast in the type-of-product list. For some time periods (e.g. most recent), these may not be available; however, Flexpart might also work with lower time resolution files. Important note: Make sure that under "'''More date/time options'''" the box "'''Split output files into one timestep per file'''" is checked. When done, push the "'''Submit Request'''" button.
 
   6. You will receive an e-mail from UCAR when the data is ready. Follow instructions on the e-mail regarding ways to download the data.
@@ -23 +23 @@
 
 Getting the data into FLEXPART
+
+1.     The received files should be in the format 201001011300.pgbh01.gdas.20100101-20100105.grb2. Make sure the data is not in format pgbh02.gdas.20100101-20100105.grb2 without the date/time in the beginning. If this is the case, you probably did not check the “Split output files into one timestep per file” box.
+
+2.     In case you also downloaded the analysis data (labeled "pgbhnl"): It does not include all of the surface variables like 2 m temperature and 10 m winds, and so can't be used in FLEXPART. Use the 6 h forecast files (labeled “pgbh06”) instead to cover the time steps 00 06 12 and 18. See also the example for the AVAILABLE file below.
+
+3.     The files that you want to use in Flexpart have to be listed in the AVAILABLE file like this
+
+ 
+
+DATE     TIME         FILENAME     SPECIFICATIONS
+
+YYYYMMDD HHMISS
+
+________ ______      __________      __________
+
+20100101 000000      201001010000.pgbh06.gdas.20091226-20091231.grb2      ON DISC
+
+20100101 010000      201001010100.pgbh01.gdas.20100101-20100105.grb2      ON DISC
+
+20100101 020000      201001010200.pgbh02.gdas.20100101-20100105.grb2      ON DISC