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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.