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ESA > Join & Share > GPOD > G-POD NEST InSAR Service
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G-POD NEST InSAR Service

introduction

The G-POD NEST InSAR service mplements the ad-hoc InSAR workflow avaialble on NEST to produce simple interferograms and coherence maps starting from ASAR Level-1 SLC (IMS) products.

usage

The Main Parameters panel and the Data Selection of the service GUI are
common features for all the G-POD services. For a generic guide about
G-POD and the GUI of the services, please refer to the G-POD User Manual.

Supported input datasets

The service support in input just ENVISAT ASAR Level-1 SLC (IMS) products.

Custom parameters

The service exposes the follwoing default parameters for each step of the implemented workflow :

Create Stack -> GCP Select -> Warp -> Interferogram -> Coherence

Image  

For the scientific explanation of each parameter refer to the NEST documentation .

tutorial

1) After logging with your EO-SSO account, access the G-POD NEST InSAR service page.

2) Draw an Area of Interest (AOI) or insert the corners coordinates (e.g. : lon_min=12.2 , lat_min=41.6 , lon_max=12.9 , lat_max=42.1 ).

3) Select the input dataset and track (track 172 in the example), then set start and stop time for the data search. Then press the query button to retrieve the available product list.

 

4) Select the input products that you are interested to process. Firstly double click on your selected product master (which become red coloroud) and then select your products slaves. Pay attention the input products belong to the same track.

In the example the follwoing products have been selected:

ASA_IMS_1PNUPA20050723_205338_000000162039_00172_17761_1181.N1
ASA_IMS_1PNUPA20060218_205325_000000162045_00172_20767_1195.N1

5) Set the Main Parameters (desciption is available in the G-POD User Manual ).

6) Set your custom parameters for each step of the workflow. For not expert users it is reccomended to keep the default parameters shown in the above section "Custom Parameters".

7) Press the button "Process it!" to start the processing.

8) Monitor the task status on the G-POD workspace.

9) Once the task is completed download the results.


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Page last modified on Thursday 05 of February 2015 09:53:43 CET by .