Downloading data via FTP

When you register you will be granted access both to the Web data portal and to the FTP site. Separate confirmation is sent that access has been granted for FTP downloading.

To reach the FTP site:

 ftp ftp-esg.ucllnl.org

FTP vs. portal access

Downloading data via FTP may provide faster download times. The main advantage of FTP is that you can download multiple files with a single mget operation.

On the other hand, the portal provides more search and browse capability than does FTP. You may find it useful to start browsing via the portal to get a sense of what data is available, and how it is structured, then use FTP for higher volume data transfers.

FTP site map

Each directory has the following template:

/project/scenario/submodel/frequency/variable/model/run

where

project is the project identifier:

scenario is the scenario identifier:

submodel is a submodel identifier:

frequency is a temporal frequency ID:

variable is the IPCC variable name, or CFMIP variable name.

model is a model identifier, and

run is a run identifer, such as 'run1', 'run2', etc. This distinguishes individual members of an ensemble.

Example:

The monthly mean cloud area fraction data for the IPCC 4AR Climate of the 20th Century experiment, GISS AOM C4x3 model, run 1, is located at:

/ipcc/20c3m/atm/mo/clt/giss_aom/run1/clt_A1.nc