Gpt sentinel-1 back-geocoding error

Linya-Peng · December 14, 2020, 2:23pm

Hi Everyone!
I’m back-geocoding a pair of sentinel-1 data using gpt. I got a 403 error when using 3sec SRTM(auto download), so I use external dem. But I got this error:

INFO: org.esa.snap.core.gpf.operators.tooladapter.ToolAdapterIO: Initializing external tool adapters
INFO: org.esa.s2tbx.dataio.gdal.GDALVersion: GDAL not found on system. Internal GDAL 3.0.0 from distribution will be used. (f1)
INFO: org.esa.s2tbx.dataio.gdal.GDALVersion: Internal GDAL 3.0.0 set to be used by SNAP.
INFO: org.esa.snap.core.util.EngineVersionCheckActivator: Please check regularly for new updates for the best SNAP experience.
INFO: org.esa.s2tbx.dataio.gdal.GDALVersion: Internal GDAL 3.0.0 set to be used by SNAP.
INFO: org.hsqldb.persist.Logger: dataFileCache open start
SEVERE: com.sun.xml.bind.v2.util.XmlFactory: null
org.xml.sax.SAXNotRecognizedException: Feature ‘http://javax.xml.XMLConstants/feature/secure-processing’ is not recognized.
at org.apache.xerces.parsers.AbstractSAXParser.setFeature(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl.setFeatures(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl.(Unknown Source)
at org.apache.xerces.jaxp.SAXParserFactoryImpl.newSAXParserImpl(Unknown Source)
at org.apache.xerces.jaxp.SAXParserFactoryImpl.setFeature(Unknown Source)
at com.sun.xml.bind.v2.util.XmlFactory.createParserFactory(XmlFactory.java:106)
at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.getXMLReader(UnmarshallerImpl.java:124)
at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:157)
at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:214)
at it.geosolutions.imageioimpl.plugins.tiff.gdal.GDALMetadataParser.parse(GDALMetadataParser.java:60)
at it.geosolutions.imageioimpl.plugins.tiff.TIFFImageReader.initializeFromMetadata(TIFFImageReader.java:1337)
at it.geosolutions.imageioimpl.plugins.tiff.TIFFImageReader.seekToImage(TIFFImageReader.java:865)
at it.geosolutions.imageioimpl.plugins.tiff.TIFFImageReader.seekToImage(TIFFImageReader.java:822)
at it.geosolutions.imageioimpl.plugins.tiff.TIFFImageReader.getWidth(TIFFImageReader.java:1080)
at org.esa.snap.dataio.geotiff.GeoTiffImageReader.getImageWidth(GeoTiffImageReader.java:160)
at org.esa.snap.dataio.geotiff.GeoTiffProductReader.readProduct(GeoTiffProductReader.java:230)
at org.esa.snap.dataio.geotiff.GeoTiffProductReader.readProductNodesImpl(GeoTiffProductReader.java:136)
at org.esa.snap.core.dataio.AbstractProductReader.readProductNodes(AbstractProductReader.java:178)
at org.esa.snap.engine_utilities.gpf.CommonReaders.read(CommonReaders.java:80)
at org.esa.snap.engine_utilities.gpf.CommonReaders.readCommonProductReader(CommonReaders.java:59)
at org.esa.snap.engine_utilities.gpf.CommonReaders.readProduct(CommonReaders.java:33)
at org.esa.snap.dem.dataio.FileElevationModel.init(FileElevationModel.java:53)
at org.esa.snap.dem.dataio.FileElevationModel.(FileElevationModel.java:49)
at org.esa.s1tbx.sentinel1.gpf.BackGeocodingOp.getElevationModel(BackGeocodingOp.java:536)
at org.esa.s1tbx.sentinel1.gpf.BackGeocodingOp.computeTileStack(BackGeocodingOp.java:486)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:122)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at javax.media.jai.PlanarImage.cobbleFloat(Unknown Source)
at javax.media.jai.PlanarImage.getData(Unknown Source)
at com.bc.ceres.glevel.MultiLevelImage.getData(MultiLevelImage.java:64)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:449)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:435)
at org.esa.snap.core.gpf.Operator.getSourceTile(Operator.java:459)
at org.esa.s1tbx.sentinel1.gpf.TOPSARDeburstOp.computeTileInOneSwathFloat(TOPSARDeburstOp.java:904)
at org.esa.s1tbx.sentinel1.gpf.TOPSARDeburstOp.computeTileStack(TOPSARDeburstOp.java:811)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:122)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at javax.media.jai.PlanarImage.getData(Unknown Source)
at com.bc.ceres.glevel.MultiLevelImage.getData(MultiLevelImage.java:64)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:449)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:435)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:116)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at com.sun.media.jai.util.RequestJob.compute(Unknown Source)
at com.sun.media.jai.util.WorkerThread.run(Unknown Source)

SEVERE: org.esa.s1tbx.sentinel1.gpf.BackGeocodingOp: Unable to get elevation model: error in opening zip file
java.lang.NullPointerException
at org.esa.s1tbx.sentinel1.gpf.BackGeocodingOp.computeBurstOffset(BackGeocodingOp.java:573)
at org.esa.s1tbx.sentinel1.gpf.BackGeocodingOp.computeTileStack(BackGeocodingOp.java:490)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:122)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at javax.media.jai.PlanarImage.cobbleFloat(Unknown Source)
at javax.media.jai.PlanarImage.getData(Unknown Source)
at com.bc.ceres.glevel.MultiLevelImage.getData(MultiLevelImage.java:64)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:449)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:435)
at org.esa.snap.core.gpf.Operator.getSourceTile(Operator.java:459)
at org.esa.s1tbx.sentinel1.gpf.TOPSARDeburstOp.computeTileInOneSwathFloat(TOPSARDeburstOp.java:904)
at org.esa.s1tbx.sentinel1.gpf.TOPSARDeburstOp.computeTileStack(TOPSARDeburstOp.java:811)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:122)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at javax.media.jai.PlanarImage.getData(Unknown Source)
at com.bc.ceres.glevel.MultiLevelImage.getData(MultiLevelImage.java:64)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:449)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:435)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:116)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at com.sun.media.jai.util.RequestJob.compute(Unknown Source)
at com.sun.media.jai.util.WorkerThread.run(Unknown Source)
java.lang.NullPointerException
at org.esa.s1tbx.sentinel1.gpf.BackGeocodingOp.computeBurstOffset(BackGeocodingOp.java:573)
at org.esa.s1tbx.sentinel1.gpf.BackGeocodingOp.computeTileStack(BackGeocodingOp.java:490)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:122)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at javax.media.jai.PlanarImage.cobbleFloat(Unknown Source)
at javax.media.jai.PlanarImage.getData(Unknown Source)
at com.bc.ceres.glevel.MultiLevelImage.getData(MultiLevelImage.java:64)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:449)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:435)
at org.esa.snap.core.gpf.Operator.getSourceTile(Operator.java:459)
at org.esa.s1tbx.sentinel1.gpf.TOPSARDeburstOp.computeTileInOneSwathFloat(TOPSARDeburstOp.java:904)
at org.esa.s1tbx.sentinel1.gpf.TOPSARDeburstOp.computeTileStack(TOPSARDeburstOp.java:811)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:122)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at javax.media.jai.PlanarImage.getData(Unknown Source)
at com.bc.ceres.glevel.MultiLevelImage.getData(MultiLevelImage.java:64)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:449)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:435)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:116)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at com.sun.media.jai.util.RequestJob.compute(Unknown Source)
at com.sun.media.jai.util.WorkerThread.run(Unknown Source)
org.esa.snap.core.gpf.OperatorException: error in opening zip file
at org.esa.snap.core.gpf.graph.GraphProcessor$GPFImagingListener.errorOccurred(GraphProcessor.java:379)
at com.sun.media.jai.util.SunTileScheduler.sendExceptionToListener(Unknown Source)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at javax.media.jai.PlanarImage.cobbleFloat(Unknown Source)
at javax.media.jai.PlanarImage.getData(Unknown Source)
at com.bc.ceres.glevel.MultiLevelImage.getData(MultiLevelImage.java:64)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:449)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:435)
at org.esa.snap.core.gpf.Operator.getSourceTile(Operator.java:459)
at org.esa.s1tbx.sentinel1.gpf.TOPSARDeburstOp.computeTileInOneSwathFloat(TOPSARDeburstOp.java:904)
at org.esa.s1tbx.sentinel1.gpf.TOPSARDeburstOp.computeTileStack(TOPSARDeburstOp.java:811)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:122)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at javax.media.jai.PlanarImage.getData(Unknown Source)
at com.bc.ceres.glevel.MultiLevelImage.getData(MultiLevelImage.java:64)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:449)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:435)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:116)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at com.sun.media.jai.util.RequestJob.compute(Unknown Source)
at com.sun.media.jai.util.WorkerThread.run(Unknown Source)
Caused by: org.esa.snap.core.gpf.OperatorException: error in opening zip file
at org.esa.snap.engine_utilities.gpf.OperatorUtils.catchOperatorException(OperatorUtils.java:440)
at org.esa.s1tbx.sentinel1.gpf.BackGeocodingOp.computeTileStack(BackGeocodingOp.java:520)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:122)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
… 24 more
Caused by: java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.(ZipFile.java:230)
at java.util.zip.ZipFile.(ZipFile.java:160)
at java.util.zip.ZipFile.(ZipFile.java:174)
at org.esa.snap.dem.dataio.EarthGravitationalModel96.(EarthGravitationalModel96.java:104)
at org.esa.snap.dem.dataio.EarthGravitationalModel96.create(EarthGravitationalModel96.java:85)
at org.esa.snap.dem.dataio.EarthGravitationalModel96.instance(EarthGravitationalModel96.java:77)
at org.esa.s1tbx.sentinel1.gpf.BackGeocodingOp.computeExtendedAmount(BackGeocodingOp.java:680)
at org.esa.s1tbx.sentinel1.gpf.BackGeocodingOp.computeTileStack(BackGeocodingOp.java:509)
… 26 more
java.lang.NullPointerException
at org.esa.s1tbx.sentinel1.gpf.BackGeocodingOp.computeBurstOffset(BackGeocodingOp.java:573)
at org.esa.s1tbx.sentinel1.gpf.BackGeocodingOp.computeTileStack(BackGeocodingOp.java:490)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:122)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at javax.media.jai.PlanarImage.cobbleFloat(Unknown Source)
at javax.media.jai.PlanarImage.getData(Unknown Source)
at com.bc.ceres.glevel.MultiLevelImage.getData(MultiLevelImage.java:64)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:449)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:435)
at org.esa.snap.core.gpf.Operator.getSourceTile(Operator.java:459)
at org.esa.s1tbx.sentinel1.gpf.TOPSARDeburstOp.computeTileInOneSwathFloat(TOPSARDeburstOp.java:904)
at org.esa.s1tbx.sentinel1.gpf.TOPSARDeburstOp.computeTileStack(TOPSARDeburstOp.java:811)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:122)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at javax.media.jai.PlanarImage.getData(Unknown Source)
at com.bc.ceres.glevel.MultiLevelImage.getData(MultiLevelImage.java:64)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:449)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:435)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:116)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at com.sun.media.jai.util.RequestJob.compute(Unknown Source)
at com.sun.media.jai.util.WorkerThread.run(Unknown Source)

Error: error in opening zip file
java.lang.NullPointerException
at org.esa.s1tbx.sentinel1.gpf.BackGeocodingOp.computeBurstOffset(BackGeocodingOp.java:573)
at org.esa.s1tbx.sentinel1.gpf.BackGeocodingOp.computeTileStack(BackGeocodingOp.java:490)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:122)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at javax.media.jai.PlanarImage.cobbleFloat(Unknown Source)
at javax.media.jai.PlanarImage.getData(Unknown Source)
at com.bc.ceres.glevel.MultiLevelImage.getData(MultiLevelImage.java:64)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:449)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:435)
at org.esa.snap.core.gpf.Operator.getSourceTile(Operator.java:459)
at org.esa.s1tbx.sentinel1.gpf.TOPSARDeburstOp.computeTileInOneSwathFloat(TOPSARDeburstOp.java:904)
at org.esa.s1tbx.sentinel1.gpf.TOPSARDeburstOp.computeTileStack(TOPSARDeburstOp.java:811)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:122)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at javax.media.jai.PlanarImage.getData(Unknown Source)
at com.bc.ceres.glevel.MultiLevelImage.getData(MultiLevelImage.java:64)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:449)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:435)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:116)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at com.sun.media.jai.util.RequestJob.compute(Unknown Source)
at com.sun.media.jai.util.WorkerThread.run(Unknown Source)
java.lang.NullPointerException
at org.esa.s1tbx.sentinel1.gpf.BackGeocodingOp.computeBurstOffset(BackGeocodingOp.java:573)
at org.esa.s1tbx.sentinel1.gpf.BackGeocodingOp.computeTileStack(BackGeocodingOp.java:490)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:122)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at javax.media.jai.PlanarImage.cobbleFloat(Unknown Source)
at javax.media.jai.PlanarImage.getData(Unknown Source)
at com.bc.ceres.glevel.MultiLevelImage.getData(MultiLevelImage.java:64)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:449)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:435)
at org.esa.snap.core.gpf.Operator.getSourceTile(Operator.java:459)
at org.esa.s1tbx.sentinel1.gpf.TOPSARDeburstOp.computeTileInOneSwathFloat(TOPSARDeburstOp.java:904)
at org.esa.s1tbx.sentinel1.gpf.TOPSARDeburstOp.computeTileStack(TOPSARDeburstOp.java:811)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:122)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at javax.media.jai.PlanarImage.getData(Unknown Source)
at com.bc.ceres.glevel.MultiLevelImage.getData(MultiLevelImage.java:64)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:449)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:435)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:116)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at com.sun.media.jai.util.RequestJob.compute(Unknown Source)
at com.sun.media.jai.util.WorkerThread.run(Unknown Source)
java.lang.NullPointerException
at org.esa.s1tbx.sentinel1.gpf.BackGeocodingOp.computeBurstOffset(BackGeocodingOp.java:573)
at org.esa.s1tbx.sentinel1.gpf.BackGeocodingOp.computeTileStack(BackGeocodingOp.java:490)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:122)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at javax.media.jai.PlanarImage.cobbleFloat(Unknown Source)
at javax.media.jai.PlanarImage.getData(Unknown Source)
Traceback (most recent call last):
File “D:/Study/Xigong_experiment/Preprocessing/graph2.py”, line 28, in
subprocess.check_output(command)
File “D:\Software\Anaconda3\lib\subprocess.py”, line 411, in check_output
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
File “D:\Software\Anaconda3\lib\subprocess.py”, line 512, in run
raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command ‘[‘gpt’, ‘graph2.xml’, ‘-Pinput1=D:\Study\Xigong_experiment\apply_orbit\SW3HK20150615.dim’, ‘-Pinput2=D:\Study\Xigong_experiment\apply_orbit\SW3HK20150627.dim’, ‘-Poutput=C:\Users\86135\XigongIn\graph2\crg_deb20150615_20150627.dim’]’ returned non-zero exit status 1.

I don’t know what going wrong, please help me TAT

marpet · December 14, 2020, 2:29pm

Hi!
Probably the DEM data wasn’t correctly downloaded.
You can go and delete what is stored locally.
You can find the data at
<USER_HOME>/.snap/auxdata/dem
After deleting the data, the process will try to download the data again.
Hopefully, it will work this time.

@oana_hogoiu the issues with downloaded DEM data seem to increase in the last 1-2 weeks.
Has something changed? Is something visible in the logs?

Linya-Peng · December 14, 2020, 2:41pm

Thank you for your reply. It seems that the SRTM DEM can’t be downloaded correctly. So I use external dem.
Here is my setting:

But when I click the run button, I got a 'error in openning zip file ':

oana_hogoiu · December 15, 2020, 12:09pm

Hello,
Regarding DEM downloading issues, there was unusual traffic on STEP server from 7 December until 14 December, which is now solved, but this still doesn’t explain the 403 (forbidden) error for DEM access…
@Linya-Peng Can you attach the log files containing the 403 error? Can you also specify if the problem persists?
Thank you in advance.

Linya-Peng · December 15, 2020, 12:31pm

Hi oana_hogoiu, I run the back-geocoding in gpt, and still got the 403 error. Here is the detail:

Thank you

oana_hogoiu · December 15, 2020, 2:20pm

Your 403 error is not related with STEP server (step.esa.int), I see it’s for URL:
http://cgiar-csi-srtm.openterrain.org.s3.amazonaws.com/source/srtm_59_08.zip

Linya-Peng · December 15, 2020, 2:51pm

Thank you for your reply. I copy the URL and visit it in browser, but get:

Do you know how to fix it?
Thank you in advance

urthe · December 15, 2020, 4:49pm

This is the same error as Response code: 403 on SRTM. I haven’t been able to find a solution

Linya-Peng · December 16, 2020, 6:39am

Thank you for reply~ Have you ever tried External DEM? I didn’t know why the tif format file would cause the ‘error in openning zip file’

urthe · December 16, 2020, 4:35pm

I haven’t tried that as ASTER does what I need. I’ve been getting error opening zip file on SNAP 8 but going back to 7.0 fixed the problem for me

lveci · December 17, 2020, 4:15am

I’ve added the SRTM 90m DEM to a new bucket for now while we find a better home for it.
In you SNAP installation you can edit the snap.auxdata.properties file with

DEM.srtm3GeoTiffDEM_HTTP = http://skywatch-auxdata.s3-us-west-2.amazonaws.com/dem/SRTM90/tiff/

The next update will have a proper source set by default

Linya-Peng · December 17, 2020, 1:57pm

Thank you for your reply! I tried 1Sec(Auto Download) and it worked.

Linya-Peng · December 17, 2020, 2:00pm

Thank you for your reply! I copied the URL http://skywatch-auxdata.s3-us-west-2.amazonaws.com/dem/SRTM90/tiff/ and visited it in Chrome, but the page didn’t load properly. I will try in SNAP later~

lveci · December 17, 2020, 2:02pm

A browser won’t list from the bucket but the objects in the bucket are public
http://skywatch-auxdata.s3-us-west-2.amazonaws.com/dem/SRTM90/tiff/srtm_01_02.zip

Linya-Peng · December 17, 2020, 2:03pm

Got it! Thank you very much!

daniel_gb · December 30, 2020, 6:41pm

Excuse me, I am new in this InSAR topics, and I need help with a problem. I don’t speak english but I will try to explain the situation very clear.

I am trying to make a corregistration for InSAR, but in Back Geocoding step when I use SRTM 3Sec DEM the process doesn’t advance, for that reason a moderator suggested me to use SRTM 1Sec, it almost worked, but the problem is that in Stack file for slave image the data dissapear and for that reason I can’t create an inteferogram, so the moderator sent me to this place and I have seen this link http://skywatch-auxdata.s3-us-west-2.amazonaws.com/dem/SRTM90/tiff/, when I accessed the link it was downloaded a file, but I don’t know what is it and how I can open it, and I would like to know if that file can solve my problem.

Thank you.

ABraun · December 31, 2020, 10:50am

please don’t cross-post your question over multiple topics. I have answered here: Problem with loading screen for S-1 Back Geocoding

deskh · January 9, 2021, 9:12am

Hi Iveci,

I am still getting below error even after updating the property

DEM.srtm3GeoTiffDEM_HTTP = http://skywatch-auxdata.s3-us-west-2.amazonaws.com/dem/SRTM90/tiff/

Error:
ThermalNoiseRemoval
Executing processing graph
java.lang.NullPointerException
done.
INFO: org.esa.snap.core.gpf.operators.tooladapter.ToolAdapterIO: Initializing external tool adapters
INFO: org.esa.s2tbx.dataio.gdal.GDALVersion: Incompatible GDAL 3.2.1 found on system. Internal GDAL 3.0.0 from distribution will be used.
INFO: org.esa.s2tbx.dataio.gdal.GDALVersion: Internal GDAL 3.0.0 set to be used by SNAP.
INFO: org.esa.snap.core.util.EngineVersionCheckActivator: Please check regularly for new updates for the best SNAP experience.
INFO: org.esa.s2tbx.dataio.gdal.GDALVersion: Internal GDAL 3.0.0 set to be used by SNAP.
INFO: org.hsqldb.persist.Logger: dataFileCache open start
org.esa.snap.core.gpf.graph.GraphException: [NodeId: ThermalNoiseRemoval] java.lang.NullPointerException
at org.esa.snap.core.gpf.graph.NodeContext.initTargetProduct(NodeContext.java:79)
at org.esa.snap.core.gpf.graph.GraphContext.initNodeContext(GraphContext.java:199)
at org.esa.snap.core.gpf.graph.GraphContext.initNodeContext(GraphContext.java:182)
at org.esa.snap.core.gpf.graph.GraphContext.initOutput(GraphContext.java:166)

I am working in a anaconda environment.
Could you please help.

ABraun · January 9, 2021, 9:15am

can you please try to uninstall SNAP and re-install it including the removal of user configuration data

Then please install all updates and try again.

enemni · July 1, 2021, 7:56am

Hello Iveci,

thanks a lot for you solution I implemented back in December and it worked until now. I have the same error as before with an infinite loop where the code is trying to retrieve the srtm. Would it possible for you to have another look at it? Thanks a lot