MERIS atmospheric correction effects using SeaDAS

This tutorial builds upon the SeaDAS NASA project. More context information is available from the project web page.

Getting started

The Getting started guide to implement a "MERIS Level 1 to Level 2 atmospheric correction effects using SeaDAS" application on Terradue's Developer Cloud Sandbox platform, a set of Cloud services to develop, test and exploit scalable, distributed Earth Science processors.

To run this application, you will need a Developer Cloud Sandbox that can be requested from Terradue's Portal, provided user registration approval.

Installation

Log on the developer sandbox and run these commands in a shell:

• Install Java 7

sudo yum install -y java-1.7.0-openjdk

• Select Java 7

sudo /usr/sbin/alternatives --config java

This will show on the terminal window:

There are 3 programs which provide 'java'.

  Selection    Command
-----------------------------------------------
 + 1           /usr/java/jdk1.6.0_35/jre/bin/java
   2           /usr/lib/jvm/jre-1.5.0-gcj/bin/java
*  3           /usr/lib/jvm/jre-1.7.0-openjdk.x86_64/bin/java

Enter to keep the current selection[+], or type selection number:

Select java 1.7 out of the menu options by typing the correct number (here it's 3).

• Install this application

You can install the application in two ways, via mvn or via rpm

• install via mvn

Log on the developer sandbox and run these commands in a shell:

sudo yum -y install seadas
git clone [email protected]:ocean-color-ac-challenge/seadas-meris-ac.git
cd seadas-meris-ac
mvn install

This will install the seadas-meris-ac application and the SeaDAS processor from NASA.

• Download and install via rpm

Click on the latest release available in the releases page, then copy the file to your sandbox:

scp seadas-meris-ac-0.1-ciop.noarch.rpm <your sandbox ip>:

Log on the developer sandbox and run this command in a shell:

sudo yum -y install seadas-meris-ac

Submitting the workflow

Run this command in a shell:

ciop-simwf

Or invoke the Web Processing Service via the Sandbox dashboard providing a start/stop date in the format YYYY/MM/DD (e.g. 2012-04-01 and 2012-04-03), the bounding box (upper left lat/lon, lower right lat/lon) and the par (input param file) location.

Community and Documentation

To learn more and find information go to

• Developer Cloud Sandbox service

Authors (alphabetically)

• Fabrice Brito
• Fabio D'Andria
• Samantha Lavender

License

Copyright 2014 Terradue Srl

Licensed under the Apache License, Version 2.0: http://www.apache.org/licenses/LICENSE-2.0