Unit3-BatchProcessing

MarianaSoppa&AstridBracher

Phytoplanktonfromspace:introtooceancolor–29&30June2019

OceanOptics&OceanColorRemoteSensing

ThisprojectreceivedfundingfromtheEuropeanUnion’sHorizon2020researchandinnovationprogrammeundergrantagreementnº810139.

Contents

•  Practical(short)courseonoceancolour(OC)remotesensingusingSentinelApplicationPlatform(SNAP).

•  Lectures:

•  Unit1:-  Oceancolourdata(sensors,dataarchivesandprocessinglevels)-  ExploringOCdatausingSNAP

•  Unit2:-ValidationTools

•  Unit3:-BatchProcessing

SNAP:BatchSubset(Graphbuilder+Batchprocessing)

3

1.  Buildyourgraph:ToolsàGraphBuilder

•  rightclicktoaddnewoperators

SNAP:BatchSubset(Graphbuilder+Batchprocessing)

•  rightclick“connectgraph”andsaveit

SNAP:BatchSubset(Graphbuilder+Batchprocessing)

•  Gotobatchprocessing:Toolsàbatchprocessing

SNAP:BatchSubset(Graphbuilder+Batchprocessing)

•  I/Oparameters:selectallimagesyouwanttoprocessandgivetheoutputpath(directory)andtheoutputformat(Savease.g.NetCDF).

SNAP:BatchSubset(Graphbuilder+Batchprocessing)

•  Loadgraph

SNAP:BatchSubset(Graphbuilder+Batchprocessing)

•  Open“Subset”

SNAP:BatchSubset(Graphbuilder+Batchprocessing)

•  SelecttheregionofinterestbyeitherusingthepixelcoordinatesorgeographicalcoordinatesandRUN!•  ThenewfileswillautomaticallyopeninSNAP

SNAP:BatchSubset(Graphbuilder+Batchprocessing)

•  SubsetMODIS-AquaChlorophyll-aclimatologydataforyourstudyregionusingbatchprocessing.

•  Opentwoimages,oneinsummerandoneinwinter.Applycolorand

observethedifferences.

SNAP:BatchSubset(Graphbuilder+Batchprocessing)

EndofUnit3