How to Get the Data

Introduction

The NAAD data is available through the Data Access Protocol (DAP). The data can be accessed in two ways described below: downloading to local PC or using direct access. Both ways require a NAAD account. If you do not yet have a NAAD account, please create one HERE.

Prerequisites

  • Familiarize yourself with the list of available Variables. If you need an access to additional data, please contact Alexander Gavrikov (gavrikov-at-ocean.ru) or Sergey Gulev (gul-at-sail.msk.ru).
  • NAAD account — if you do not yet have a NAAD account, please create one HERE

Direct access

This approach to getting the data is preferable. It exploits the full capacity of the Data Access Protocol and avoids downloading huge amounts of data. You access the NAAD inside your script, therefore your programming language of choice must have libraries that implement the Data Access Protocol.

You can learn how to set up NAAD DAP access and see examples for Python HERE.

Download to a local machine

This way of obtaining the data may be more conventional but is not recommended because it is generally slow and takes a lot of storage on a user's machine. Nevertheless, three methods are available:

web interface
To access the data you need to login to the NAAD server. You will then be able to see the file structure and to download the NAAD data manually.
wget
The example below downloads all files in the folder https://naad.ocean.ru/dap/LoRes/Invariants/. Don't forget to replace USER_NAME and USER_PASSWORD with your username and password.
#!/bin/bash
USERNAME="USER_NAME";
PASSWORD="USER_PASSWORD";
LOGIN_PAGE="https://naad.ocean.ru/accounts/login/";
COOKIES_FILE="naadcookies.txt";
CSRF=`wget -qO- --keep-session-cookies --save-cookies $COOKIES_FILE $LOGIN_PAGE \
    | grep "csrfmiddlewaretoken"|sed -e's/.*name=\"//;s/value//;s/[\",\>,\ ]//g;'`;
wget -qO- --keep-session-cookies --load-cookies $COOKIES_FILE \
    --save-cookies $COOKIES_FILE  \
    --post-data "username=$USERNAME&password=$PASSWORD&$CSRF" \
    --referer $LOGIN_PAGE $LOGIN_PAGE
wget --keep-session-cookies --load-cookies $COOKIES_FILE \
    -r --no-parent https://naad.ocean.ru/dap/LoRes/Invariants/
curl
Upcoming!

If you have any difficulties accessing the data, please contact the support (naad-at-ocean.ru) or Alexander Gavrikov (gavrikov-at-ocean.ru).

Design and development: Alexander Gavrikov, Andrey Muratov; Support: naad-at-ocean.ru; 2020
Open access

Access to the NAAD data is now available through the Data Access Protocol (DAP). Details are in the Download section.

The NAAD LoRes (77km) has been uploaded

All variables listed in the Variables section have been uploaded for the LoRes (77 km) run of the NAAD dataset. The NAAD HiRes (14 km) is currently uploading. Access to the data will be provided within a few weeks.

Revised list of variables provided

The short list of potentially the most demanded variables is now in the Variables section both for LoRes and HiRes datasets. It will soon be available for download. The long list will be provided later.