Data
provided by the Data Discovery Portal are stored in the Central
Metadata Catalogue. In WADI we use GeoNetwork as a free,
commonly used and open source cataloguing application. It
provides the metadata (data descriptions) to the public and
gives WASCAL members access to public and internal data,
scientific documents, maps, etc. GeoNetwork provides a
comprehensive online editing tool for metadata, which can be
used to create and edit metadata online. It allows the up- and
download of data, documents and files of any type. By an
integrated Web Map Viewer data from distributed Web Map Services
can be overlaid and visualized interactively to perform basic
geospatial analyses based on WASCAL's geographic data stock.
 Start the Catalogue application by clicking
the picture |
BUTT (Bulk Upload and Transfer
Tool) is a client application to create and edit metadata
offline. After finalizing the editing process metadata and data
itself can be submitted to the Central Metadata Catalogue.
Precondition is the presence of a java virtual machine (version
= 1.8+) on the user’s computer and the installed java web start
plugin. If your JAVA is older than 1.8 then you can change the TLS settings in order to run butt.
For windows go to: Control Panel - Programs - Java - Advanced - Advanced Security Settings" and select TLS1.2
To do this is not a security risk, because TLS1.2 is more secure than the older versions of TLS (but it is disabled by default by JAVA versions less than 1.8)
Start the BUTT
client application via java web start without installation or
configuration by clicking the picture above. |
Time series data provision |
Quality assessment of time series
data |
Time series data are usually
provided as ASCII or Excel files and are imported into WADI
automatically once provided. However, in order to import the
data properly, WADI needs some information regarding the site
setup, measuring devices, parameters and the structure of the
import file(s). These information can be provided using the TSM
Configurator. This is a Microsoft ACCESS application that allows
to insert all required meta-information to import the time
series data into WADI. This application can be downloaded here
as ACCDB file or here as MDB file. The filled ACCESS document
together with at least one data file must be sent as E-Mail
attachments to the WADI admins (wadisdi@gmail.com). After
implementation the specifications and approval by the system
admins the data will be imported into WADI and are accessible.
Once the import characteristics of time series data from a
certain site are included into the data base, new data from this
site will be automatically imported by sending the data file as
an attachment to wadisdi@gmail.com.
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Time series data are gathered
and made available to the public via semi- or fully automated
systems. These data undergo a range of checks to determine their
correctness. To illustrate, scientists, technicians or
preconfigured sensing systems are able to check certain aspects
of data (e.g., range, spikes, steps or missing values). It is
important that this kind of quality control information is well
organized and communicated to people involved in collecting and
using them. INSPECT is an online tool that allows visual
inspections of data series provided by WASCAL sensor observation
services. INSPECT is developed based on the 52°North Sensor Web
Client v3.11. The online tool can be used to query and visualize
time series; however, only authorized users are allowed to
perform data flagging. The flagging tool is only internal available at:
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