DISASTERS_EX2601_201809_HURRICANE_FLORENCE/ex2601_opera_dswx

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Service Description: <div style='text-align:Left;'>Dates of Images:20180914T1114, 20180914T2305, 20180915T1106, 20180915T2257, 20180917T2329, 20180918T2320, 20180919T1122, 20180919T2313 (GMT) (YYYYMMDD: HHMM)Summary:The Advanced Rapid Imaging and Analysis (ARIA) and Observational Products for End-Users from Remote Sensing Analysis (OPERA) teams at the Jet Propulsion Laboratory, California Institute of Technology produced flood mapping products using the OPERA Dynamic Surface Water Extent from Sentinel-1 (DSWx-S1) dataset. These products provide a rapid assessment of surface water extent to support emergency response and situational awareness during flood events.The dataset provided includes three products:<ol><li>Surface Water Extent maps on individual dates</li><li>Maximum Surface Water Extent maps, showing the full extent of water observed over a defined time period</li></ol>Dates and Input Data:Post-event images were collected on September 14, 2018; September 15, 2018; September 17, 2018; September 18, 2018; and September 19, 2018. Two acquisitions were available on September 14, 15, and 19, with one acquired in the morning and the other in the late evening.The products were generated using OPERA DSWx-S1 satellite imagery and mosaicked across tiles to provide continuous spatial coverage.Product Description:Surface water is identified from Synthetic Aperture Radar (SAR) satellite imagery and mapped at 30 m spatial resolution. Maximum Surface Water Extent maps show all locations where water was detected at any time during the analysis period.Caveats and Limitations:Detecting inundation under vegetation, in the urban perimeter, in arid environments, and along water body edges is known to be challenging. The local accuracy of the flood maps in such environments may be impacted. These results are intended to support rapid emergency response. All information is provisional for use under emergency response guidelines. These data are provided with absolutely no warranty of any kind. Use at your own risk.Suggested Use:The OPERA DSWx-S1 Water product classifies the Sentinel-1 (S1) input imagery into "not water", "open surface water", and "inundated vegetation”, masks include Height Above Nearest Drainage (HAND) mask and layover/shadow mask), or no data classes.File names: <ul><li>OPERA_L3_DSWX-S1_V1_WTR_20180914T1114_mosaic.tif OPERA_L3_DSWX-S1_V1_WTR_20180914T2305_mosaic.tif </li><li>OPERA_L3_DSWX-S1_V1_WTR_20180915T1106_mosaic.tif OPERA_L3_DSWX-S1_V1_WTR_20180915T2257_mosaic.tif </li><li>OPERA_L3_DSWX-S1_V1_WTR_20180917T2329_mosaic.tif OPERA_L3_DSWX-S1_V1_WTR_20180918T2320_mosaic.tif </li><li>OPERA_L3_DSWX-S1_V1_WTR_20180919T1122_mosaic.tif OPERA_L3_DSWX-S1_V1_WTR_20180919T2313_mosaic.tif </li></ul><div>Water (WTR) Layer Values: </div><ul><li>0: Not Water - an area with valid data that is not open water (class 1),inundated vegetation (class 3)height above nearest drainage masked (class 250)or layover/shadow masked (class 251) (suggested color: #ffffff) </li><li>1: Open Water - an area that is entirely water and unobstructed to the sensor, including obstructions by vegetation, terrain, and buildings. (suggested color: #0000ff) </li><li>3: Inundated vegetation - an area that is considered inundated, extracted from the high value in dual polarization ratio and the wetland class in land cover map. (suggested color: #00ff00) </li><li>250: Height Above Nearest Drainage (HAND) masked - an area where topographic height is higher than the HAND threshold (suggested color: #c8c8c8) </li><li>251: Layover/shadow masked - an area identified as layover or shadow computed from the geometry of the digital elevation model and sensor. The area is directly copied from input burst RTC-S1 products (suggested color: #808080) </li><li>255: No data (suggested color: transparent) Maximum Water Extent Layer Values: The maximum water extent observed during the event was created by aggregating OPERA DSWx-S1 water products. </li></ul>File names: ARIA-OPERA_L3_DSWX-S1_V1_WTR_20180831T2321_20180919T2313_max_extent.tif <ul><li>0: Not Water. No water was detected within the time period of the images. Masked pixels are set to No data. (suggested color: #ffffff) </li><li>1: Water - an area where open water or partial surface water was detected during the time period of the images. (suggested color: #ff15e4)</li></ul>Satellite/Sensor/Resolution:Satellite/Sensor: Synthetic Aperture Radar (SAR) instrument on European Space Agency's (ESA) Sentinel-1A/C satellites. Spatial Resolution: 30 meters Temporal Resolution: sub-daily to bi-weekly Esri REST Endpoint:See URL to the right.WMS Endpoint:<a href='https://gis.earthdata.nasa.gov/gis05/services/DISASTERS_EX2601_201809_HURRICANE_FLORENCE/ex2601_opera_dswx_s1/MapServer/WMSServer' target='_blank'>https://gis.earthdata.nasa.gov/gis05/services/DISASTERS_EX2601_201809_HURRICANE_FLORENCE/ex2601_opera_dswx_s1/MapServer/WMSServer</a></div>

Map Name: dswx-s1

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Description: Dates of Images:20180914T1114, 20180914T2305, 20180915T1106, 20180915T2257, 20180917T2329, 20180918T2320, 20180919T1122, 20180919T2313 (GMT) (YYYYMMDD: HHMM)Summary:The Advanced Rapid Imaging and Analysis (ARIA) and Observational Products for End-Users from Remote Sensing Analysis (OPERA) teams at the Jet Propulsion Laboratory, California Institute of Technology produced flood mapping products using the OPERA Dynamic Surface Water Extent from Sentinel-1 (DSWx-S1) dataset. These products provide a rapid assessment of surface water extent to support emergency response and situational awareness during flood events.The dataset provided includes three products:Surface Water Extent maps on individual datesMaximum Surface Water Extent maps, showing the full extent of water observed over a defined time periodDates and Input Data:Post-event images were collected on September 14, 2018; September 15, 2018; September 17, 2018; September 18, 2018; and September 19, 2018. Two acquisitions were available on September 14, 15, and 19, with one acquired in the morning and the other in the late evening.The products were generated using OPERA DSWx-S1 satellite imagery and mosaicked across tiles to provide continuous spatial coverage.Product Description:Surface water is identified from Synthetic Aperture Radar (SAR) satellite imagery and mapped at 30 m spatial resolution. Maximum Surface Water Extent maps show all locations where water was detected at any time during the analysis period.Caveats and Limitations:Detecting inundation under vegetation, in the urban perimeter, in arid environments, and along water body edges is known to be challenging. The local accuracy of the flood maps in such environments may be impacted. These results are intended to support rapid emergency response. All information is provisional for use under emergency response guidelines. These data are provided with absolutely no warranty of any kind. Use at your own risk.Suggested Use:The OPERA DSWx-S1 Water product classifies the Sentinel-1 (S1) input imagery into "not water", "open surface water", and "inundated vegetation”, masks include Height Above Nearest Drainage (HAND) mask and layover/shadow mask), or no data classes.File names: OPERA_L3_DSWX-S1_V1_WTR_20180914T1114_mosaic.tif OPERA_L3_DSWX-S1_V1_WTR_20180914T2305_mosaic.tif OPERA_L3_DSWX-S1_V1_WTR_20180915T1106_mosaic.tif OPERA_L3_DSWX-S1_V1_WTR_20180915T2257_mosaic.tif OPERA_L3_DSWX-S1_V1_WTR_20180917T2329_mosaic.tif OPERA_L3_DSWX-S1_V1_WTR_20180918T2320_mosaic.tif OPERA_L3_DSWX-S1_V1_WTR_20180919T1122_mosaic.tif OPERA_L3_DSWX-S1_V1_WTR_20180919T2313_mosaic.tif Water (WTR) Layer Values: 0: Not Water - an area with valid data that is not open water (class 1),inundated vegetation (class 3)height above nearest drainage masked (class 250)or layover/shadow masked (class 251) (suggested color: #ffffff) 1: Open Water - an area that is entirely water and unobstructed to the sensor, including obstructions by vegetation, terrain, and buildings. (suggested color: #0000ff) 3: Inundated vegetation - an area that is considered inundated, extracted from the high value in dual polarization ratio and the wetland class in land cover map. (suggested color: #00ff00) 250: Height Above Nearest Drainage (HAND) masked - an area where topographic height is higher than the HAND threshold (suggested color: #c8c8c8) 251: Layover/shadow masked - an area identified as layover or shadow computed from the geometry of the digital elevation model and sensor. The area is directly copied from input burst RTC-S1 products (suggested color: #808080) 255: No data (suggested color: transparent) Maximum Water Extent Layer Values: The maximum water extent observed during the event was created by aggregating OPERA DSWx-S1 water products. File names: ARIA-OPERA_L3_DSWX-S1_V1_WTR_20180831T2321_20180919T2313_max_extent.tif 0: Not Water. No water was detected within the time period of the images. Masked pixels are set to No data. (suggested color: #ffffff) 1: Water - an area where open water or partial surface water was detected during the time period of the images. (suggested color: #ff15e4)Satellite/Sensor/Resolution:Satellite/Sensor: Synthetic Aperture Radar (SAR) instrument on European Space Agency's (ESA) Sentinel-1A/C satellites. Spatial Resolution: 30 meters Temporal Resolution: sub-daily to bi-weeklyEsri REST Endpoint:See URL to the right.WMS Endpoint:https://gis.earthdata.nasa.gov/gis05/services/DISASTERS_EX2601_201809_HURRICANE_FLORENCE/ex2601_opera_dswx_s1/MapServer/WMSServer

Service Item Id: 566cbb3ae1f646ac80bd39375295da27

Copyright Text: NASA-JPL/Caltech ARIA/OPERA team, Copernicus Sentinel Data, Landsat, NASA Disasters

Spatial Reference: 32617 (32617) LatestVCSWkid(0)

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Supports Dynamic Layers: true

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Supported Query Formats: JSON, geoJSON, PBF

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Supports Datum Transformation: true

Child Resources: Info Dynamic Layer

Supported Operations: Export Map Identify QueryLegends QueryDomains Find Return Updates

DISASTERS_EX2601_201809_HURRICANE_FLORENCE/ex2601_opera_dswx_s1 (MapServer)