Instructions for use of the DART® data access pages

NDBC maintains an archive of DART® data going back to January 1, 2003. This archive is available via the NDBC web site. This document describes the use of two dynamic web pages that have been created to make these data more easily accessible to the (Short-term Inundation Forecasting for Tsunamis) SIFT program (or any program).

DART® Station List

The DART® Station Listing returns a plain text listing of DART® stations on the NDBC web site. The listing includes the station ID, location, latitude, longitude, water depth, deployment start date/time and threshold of all DART® stations on the NDBC web site. Here is a sample format:

DART® Station Listing - 08/05/2011 1421 UTC
Station ID   Name                                                Latitude   Longitude   Water Depth   Deployment Start        Threshold   Owner
21401        250NM SE of Iturup Island                           42.61666   152.58333   9999          2010-11-08 08:28:00.0   99          INTERNATIONAL
21413        690 NM SE of Tokyo, Japan                           30.52778   152.12277   5822          2010-06-15 07:51:16.0   30          NDBC
21414        184 NM SW of Adak, AK                               48.94722   178.26584   5375          2011-07-05 08:33:59.0   30          NDBC
21415        175 NM S of Attu, Alaska                            50.18028   171.84583   4745          2011-07-07 00:15:05.0   30          NDBC
21416        240 NM SE of Kamchatka Peninsula                    48.05833   163.51527   5744          2011-07-09 08:23:58.0   30          NDBC
21418        450 NM NE of Tokyo, Japan                           38.69333   148.66499   5662          2011-07-13 13:15:19.0   30          NDBC
.
.
.

Negative latitudes represent the southern hemisphere. Negative longitudes represent the western hemisphere.

DART® Data

You can retrieve and display a plain text listing of NDBC's historical DART® data that matches the station ID, starting date, and ending date that you specify. Specify these by modifying the arguments in this URL - https://www.ndbc.noaa.gov/dart_data.php?station=46401&start=&end=. The arguments for the station ID and starting and ending dates are specified as follows:

These arguments may be entered in any order, but all must be given valid values.

The date range must be two years or less.

For example; to retrieve data from station 46401 for January 4, 2004 through January 10, 2004; use the following URL:

https://www.ndbc.noaa.gov/dart_data.php?station=46401&start=2004-01-18&end=2004-01-22

This will return all water column heights on the NDBC web site for station 46401 from 00:00:00 UTC on January 4, 2004 through 23:59:59 UTC on January 10, 2004, inclusive. The output will display the parameters followed by the data. The data includes:

A sample format follows:

station 46401
start 2004-01-18
end 2004-01-22

YYYY MM DD hh mm ss T   HEIGHT (meters)
2004 01 22 15 00 00 1 5526.870
2004 01 22 14 45 00 1 5526.883
2004 01 22 14 30 00 1 5526.896
2004 01 22 14 15 00 1 5526.907
2004 01 22 14 00 00 1 5526.915
2004 01 22 13 45 00 1 5526.917
2004 01 22 13 30 00 1 5526.914
.
.
.

Note: The data are sorted in descending order by date/time.

How does the DART® Data page handle exceptions?

There are a number of exceptions that may occur when processing the arguments provided. Each one is identified below with an explanation of how the page responds:

Under unusual circumstances, there could be other run time errors: