DISASTERS_202606_FLOOD_LA/202610_opera_dswx_s1

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Service Description: <div><p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>Date of Images<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>Post-event: 2026-06-21<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>Pre-Event: 2026-06-09<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>Summary:<p style='margin:0px 0px 1rem; font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor;'>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.<p style='margin:0px 0px 1rem; font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor;'>The dataset provided includes two products:<p style='margin:0px 0px 1rem; font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor;'><ol><li>Surface Water Extent maps on individual dates</li><li>Water Gain maps, showing areas where water increased between two dates</li></ol><p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>These maps provide an initial view of the surface water extent observed following the flood event. The results presented here are preliminary and unvalidated, intended primarily to support situational awareness and field response efforts. The ARIA-Share platform emphasizes rapid dissemination of satellite-based products for disaster response. All information is provisional and should be used under emergency response guidelines. These data are provided without warranty of any kind. Use at your own risk.<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>OPERA DSWx-S1<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>The OPERA DSWx-S1 was used to identify surface water for the flooding event. The images provided are a mosaic of OPERA DSWx-S1 products, producing a composite image for each date. The mosaicking applied prioritized pixels classified as open surface water to preserve water pixels in region of product granule overlap. The images are provided as GeoTIFF files.<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>Water (WTR) Layer Description: Masked interpreted water classification layer. This represents pixel-wise classification into one of three water classes (not water, open water and inundated vegetation), masks (HAND mask and layover/shadow mask), or no data classes.<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>Water (WTR) and Binary Water (BWTR) Layer Values:<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). Masking can result in "not water" (class 0) where land cover masking is applied (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)</li></ul><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'><div style='font-family:inherit;'>Water Gain Layer Values:</div><div style='font-family:inherit;'>The water gain shows any location where there was a change from “not water” to “inundated vegetation”, “not water” to “open surface water”, or “inundated vegetation” to “open surface water" between two OPERA DSWx-S1 products.</div><div style='font-family:inherit;'>File names: ARIA-OPERA_L3_DSWX-S1_V1_WTR_20260621T0010A_20260609T0010A_water_gain.tif</div><div style='font-family:inherit;'><ul><li>0: No Change or Water Loss- an area that had no change (e.g., open water in both images) or water loss (e.g., open water to not water). Masked pixels are set to No data. (suggested color: #ffffff)</li><li>1: Water Gain - an area that gained water in the most recent image. This includes change from Not Water to Inundated Vegetation, Not Water to Open Water, and Inundated Vegetation to Open Water. (suggested color: #ff15e4)</li></ul></div></div><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'> </div><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'> </div><p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>Satellite/Sensor:<p style='margin:0px 0px 1rem; font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor;'>Satellite/Sensor: Synthetic Aperture Radar (SAR) instrument on European Space Agency's (ESA) Sentinel-1A/C satellites.<p style='margin:0px 0px 1rem; font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor;'>Spatial Resolution: 30 meters<p style='margin:0px 0px 1rem; font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor;'>Temporal Resolution: sub-daily to bi-weekly<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>Resolution:<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>30 meters<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>OPERA DSWx-S1 data availability<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>The post-processed products are available to download at https://aria-share.jpl.nasa.gov/20251012_Alaska_Floods/DSWx-S1/. The OPERA DSWx-S1 products have been in production since September 2024, are freely distributed to the public via NASA's Physical Oceanography Distributed Active Archive Center (PO.DAAC), and can be downloaded through NASA's Earthdata search. For more information about the Dynamic Surface Water eXtent product suite, please refer to the DSWx Product page: https://www.jpl.nasa.gov/go/opera/products/dswx-product-suite.<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>For more information about the Caltech-JPL ARIA project, visit https://aria.jpl.nasa.gov.<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>For more information about the JPL OPERA project, visit https://www.jpl.nasa.gov/go/opera/.<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>REST Endpoint:<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>See URL on the right.<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>Product POCs:<p style='margin:0px 0px 1rem; font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor;'>Cole Speed (cole.speed@jpl.nasa.gov)<p style='margin:0px 0px 1rem; font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor;'>Mary Grace Bato (bato@jpl.nasa.gov)<p style='margin:0px 0px 1rem; font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor;'>Alexander Handwerger (alexander.handwerger@jpl.nasa.gov )<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>Credits:<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>Sentinel-1 data were accessed through the Copernicus Open Hub and the Alaska Satellite Facility server. The product contains modified Copernicus Sentinel data (2026), processed by the European Space Agency and analyzed by the NASA-JPL/Caltech ARIA and OPERA team. The products are produced as part of the OPERA project, which is funded by NASA to address remote sensing needs identified by the Satellite Needs Working Group, and managed by NASA's Jet Propulsion Laboratory.<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>NASA JPL-Caltech ARIA/OPERA Team<p style='margin:0px 0px 1rem; font-size:16px; box-sizing:border-box; border-width:0px; border-style:solid; border-color:currentcolor; color:rgb(74, 74, 74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>==================</div>

Map Name: dswx-s1_raster

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DISASTERS_202606_FLOOD_LA/202610_opera_dswx_s1_watergain (MapServer)