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(Ommission. See Regional Real Time Data Base Homepage.)
2.1 Retrievable data
2.2 Data processing and quality control at RDMDB
2.3 Data retrieval from RDMDB
2.4 Provision of data to RDMDB
2.5 Maintenance of RDMDB
2.6 Various addresses of RDMDB
2. NEAR-GOOS Regional Delayed Mode Data Base (RDMDB)
The Japan Oceanographic Data Center (JODC) operates the RDMDB. This
manual describes the operation of the RDMDB.
The following data can be retrieved from the RDMDB.
1) Data collected through the Regional Real Time Data Base (RRTDB).
The following data are transferred to the RDMDB 30 days after they are
received by the RRTDB.
2) Data collected through the National Delayed Mode Data Base (NDMDB).
Data collected and managed by the NDMDB excluding those collected and
managed via the National Real Time Data Base (NRTDB) are transferred to
the RDMDB at regular intervals.
3) Data directly sent to the RDMDB
These data include detailed
oceanographic data that cannot be reported on a real time basis, such as CTD 2db
water temperature and salinity data, moored current meter data and ocean wave data.
4) Other data
Prompt report on current and temperature of the
adjacent areas of Japan prepared by the Hydrographic and Oceanographic Department,
Japan Coast Guard.
2.2 Data processing and quality control at RDMDB
Data transferred to the RDMDB after 30 days since they are received by
the RRTDB are classified by type and each of the classified data received in a
period of one month counting from the date of reception are compiled into one
file. After that, these data are registrated in the RDMDB data retrieval system,
which will be descripted later, so that they can be accessed by users.
Basically, the same data format used at the RRTDB is accepted when data are
compiled into files, and contents of data are not edited. Examples of file names
are given below.
Data not mentioned above are processed properly one by one. After
that, they are registered in the RDMDB data retrieval system for access by
users.
A page containing information on file names and data formats
for data collected and managed by the RDMDB is provided in the NEAR-GOOS RDMDB
Homepage, which will be described later.
The RDMDB can be accessed from the NEAR-GOOS RDMDB Homepage provided in
the JODC WWW site.
The main contents of the NEAR-GOOS RDMDB Homepage
are as follows:
The RDMDB data retrieval system displays a list of data by type and
period so that a user can select data on the screen and retrieve it.
For more information on the RDMDB data retrieval system, see the
NEAR-GOOS RDMDB Homepage.
2.4 Provision of data to RDMDB
The users of the RDMDB data base are encouraged to contribute their data to the RDMDB to promote the exchange of oceanographic data. They can use any of the following options as a means to provide their data.
1) Retrieval of user's data by the RDMDB
This method allows the
RDMDB to retrieve data provided in WWW sites and ftp sites operated by various
organizations. The RDMDB access users' WWW sites and ftp sites at regular
intervals to retrieve data. Users who can allow the RDMDB to retrieve their data
in this manner are requested to supply information on the format and contents of
their data, file naming rules and data updating frequency to the RDMDB.
2) Provision of data to the RDMDB by users
Users who wish
to send data to the RDMDB, are requested to supply information
on their data such as the format and contents of their data, file naming rules
and data provision frequency to the RDMDB.
Users may send data in any format to the RDMDB. The RDMDB will properly
process data supplied to the RDMDB and then register them in the RDMDB data
retrieval system together with catalog information so that they can be retrieved
by users.
The RDMDB offers various online services of JODC including the JODC WWW
site and also provides 24-hour data base operation on the data base operating
system owned by JODC. However, system maintenance work or an unexpected failure
of the system may suspend the RDMDB function. When a failure of the system occurs,
the RDMDB administrator tries to restore the system as soon as possible.
As a rule, the RDMDB administrator notifies users of RDMDB operational
matters, such as temporary suspension of RDMDB operation due to maitenance work,
in the notification page provided in the NEAR-GOOS RDMDB Homepage.