| snippet:
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Sentinel-2 Normalized Burn Ratio Difference (dNBR) for the Southern California Wildfires January 2025. |
| summary:
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Sentinel-2 Normalized Burn Ratio Difference (dNBR) for the Southern California Wildfires January 2025. |
| extent:
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[[-119.173780060481,33.3327671071438],[-117.969375418501,34.3377366075886]] |
| accessInformation:
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| thumbnail:
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thumbnail/thumbnail.png |
| maxScale:
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1.7976931348623157E308 |
| typeKeywords:
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["Data","Service","Map Service","ArcGIS Server"] |
| description:
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<DIV STYLE="text-align:Left;"><DIV><P><SPAN>Date of Image(s) </SPAN></P><P><SPAN>12/18/2024; UTC: 183709</SPAN></P><P><SPAN>1/12/25; UTC: 183731</SPAN></P><P><SPAN STYLE="font-weight:bold;">Date of Next Image</SPAN></P><P><SPAN>Unknown</SPAN></P><P><SPAN STYLE="font-weight:bold;">Summary: </SPAN></P><P><SPAN>The images are normalized burn ratio (NBR) images generated from the ESA’s Sentinel-2’s Multi-Spectral imager. They were created from the Level 2A products which have been atmospherically corrected to correct atmospheric effects.</SPAN></P><P><SPAN>NBR is defined mathematically as (NIR – SWIR)/(NIR + SWIR) where NIR is near-infrared and SWIR is short-wave infrared. For Sentinel 2, NIR = Band 8 and SWIR is Band 12. Using these definitions, the 20-meter resolution Band 8 and Band 12 images were used to generate these products.</SPAN></P><P><SPAN>Finally, dNBR is simply the difference between the post-fire NBR and the pre-fire NBR. Thus, we calculated dNBR as dNBR = NBR (01/12/2025) – NBR (12/18/2024)</SPAN></P><P><SPAN STYLE="font-weight:bold;">Suggested Usage: </SPAN></P><P><SPAN>For NBR, darker areas in the image represent more highly burned areas. Negative values on an image typically represent more burned areas.</SPAN></P><P><SPAN STYLE="font-weight:bold;">Format</SPAN></P><P><SPAN>GeoTIFF</SPAN></P><P><SPAN STYLE="font-weight:bold;">Resolution:</SPAN></P><P><SPAN>20 meters.</SPAN></P></DIV></DIV> |
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| catalogPath:
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| title:
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dNBR |
| type:
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Map Service |
| url:
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| tags:
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["NBR","dNBR","Normalized Burn Ratio","California","Los Angeles","Wildfires"] |
| culture:
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en-US |
| name:
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dNBR |
| guid:
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1C74B771-CCF9-412B-9B25-9BD75783B2CD |
| minScale:
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0 |
| spatialReference:
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WGS_1984_UTM_Zone_11N |