OLCI Anomaly Flagging - Command Line Description

Command Line Description

Since the OLCI Anomaly Flagging processor makes use of the SNAP graph processing framework, it can be used also as a command line tool. The graph processing is invoked by the command

• ${OPTTBX-INSTALL-DIR}/bin/gpt

To obtain general help on the graph processing, use the command

• ${OPTTBX-INSTALL-DIR}/bin/gpt -h

Specific help on the OLCI Anomaly Flagging processor can be obtained with

• ${OPTTBX-INSTALL-DIR}/bin/gpt -h OlciAnomalyFlagging

In this case, information on the usage and a list of all available parameters are given.

The OLCI Anomaly Flagging processor parameters can also be specified via a graph xml file. A possible graph xml file could look like the following. (Note that in principle it is not necessary to explicitly set parameters if default values shall be used).

    <graph id="OlciAnomalyFlaggingGraph">
        <version>1.0</version>
        <node id="anom_flag">
            <operator>OlciAnomalyFlagging</operator>
            <sources>
                <sourceProduct>${sourceProduct}</sourceProduct>
            </sources>
            <parameters>
                <writeSlopeInformation>true</writeSlopeInformation>
            </parameters>
        </node>
    </graph>

This graph can be invoked by the following call on the command line:

    gpt <graph-file.xml> -SsourceProduct=<path-to-source-file>