Select one or more files (size in bytes)

amip_ctl.lst

25

amip_model_grid.dat

1

Grib Filter: Many times you may only want a section of a huge data file. Rather than transferring the entire file, this section will allow you to select some or all (1) levels, (2) variables, and (3) dates of a GRIB file. The buttons represent common choices which may or may not be relevant to the files that you want transferred. For example choosing RH (relative humidity) would be pointless in file of sea-surface temperatures. In addition, not all possibilities are allowed. For example, suppose you only want the virtual temperature at the tropopause at 01Z. Too bad because you have to transfer the entire file.

For GRIB data only.

Select the levels desired:
all     1000 mb    925 mb    850 mb    700 mb    600 mb    500 mb    400 mb    300 mb    250 mb    200 mb    150 mb    100 mb    70 mb    50 mb    30 mb    20 mb    10 mb    sfc    tropopause    max wind lev      

Select the variables desired:
all     HGT    TMP    UGRD    VGRD    VVEL    SPFH    O3MR    ABSV    RH    CLWMR    no4LFTX    no5WAVH    ALBDO    CAPE    CFRZR    CICEP    CIN    CPRAT    CRAIN    CSNOW    CWAT    CWORK    DLWRF    DSWRF    GFLUX    HPBL    ICEC    LAND    LFTX    LHTFL    PEVPR    PRATE    PRES    PRES    PWAT    SHTFL    SOILW    SPFH    TCDC    TMAX    TMIN    UGWD    UFLX    ULWRF    USWRF    VGWD    VFLX    VVEL    VWSH    WATR    WEASD  

Extract Subregion

File transfer times can be reduced by only transferring a subregion. You can use this section to extract a geographic subsection from a latitude-longitude GRIB file. Use negative numbers for south and west.

make subregion	left longitude		right longitude
	top latitude		bottom latitude

Obtaining the Data

Your request will generate a data set. We can either (1) send the data our anonymous FTP server from which you can download the data or (2) FTP the data to your (anonymous) FTP server.

With the first method, you have to download the data within a preset time limit before the data are automatically deleted. THE SECOND METHOD IS NOT RECOMMENDED unless you have considered all the security implications and are willing to (a) send your FTP password over the internet in clear text, (b) have your FTP password saved in our web logs in clear text and (c) run an FTP server and (4) possibly make some holes in your firewall.

Save results on nomads6.ncdc.noaa.gov for downloading	FTP the results to your anonymous ftp server   WARNING: This method will be stoped from using soon.
Select file retention time: 1 hour 3 hour	Computer User ID Password Directory New name prefix leave blank for original names