View In:
ArcGIS JavaScript
ArcGIS Online Map Viewer
ArcGIS Earth
Service Description: Date(s) of Image:
1/17/2026, 1/28/2026, 1/29/2026
Summary
Umbra Sigma0 backscatter is derived from scaling factors provided within the Umbra Geo-Ellipsoid Corrected geotiff. The GEC product has been projected to a surface with a constant height above the WGS-84 ellipsoid, with the projection height determined by the elevation at scene center. Sigma0 corresponds to the return strength of the radar signal from the surface. The units for this product are decibels (dB). Debris may manifest in images via nonuniform shapes or with significant backscatter.
Resolution:
0.5 m
Credits:
NASA Disasters Program, Umbra. For derived products: “Includes copyrighted material of Umbra. All rights reserved.” This work utilized data made available through the NASA Commercial Satellite Data Acquisition (CSDA) program."
DISASTERS_202601_WINTERWX_US/202601_umbra
Description: Date(s) of Image:
1/17/2026, 1/28/2026, 1/29/2026
Summary
Umbra Sigma0 backscatter is derived from scaling factors provided within the Umbra Geo-Ellipsoid Corrected geotiff. The GEC product has been projected to a surface with a constant height above the WGS-84 ellipsoid, with the projection height determined by the elevation at scene center. Sigma0 corresponds to the return strength of the radar signal from the surface. The units for this product are decibels (dB). Debris may manifest in images via nonuniform shapes or with significant backscatter.
Resolution:
0.5 m
Credits:
NASA Disasters Program, Umbra. For derived products: “Includes copyrighted material of Umbra. All rights reserved.” This work utilized data made available through the NASA Commercial Satellite Data Acquisition (CSDA) program."
false
Extent:
XMin: -1.01389611402E7
YMin: 3941564.736690483
XMax: -9904405.388017783
YMax: 4098332.769199997
Spatial Reference: 102100
(3857)
LatestVCSWkid(0)
Initial Extent:
XMin: -1.01389611402E7
YMin: 3941564.736690483
XMax: -9904405.388017783
YMax: 4098332.769199997
Spatial Reference: 102100
(3857)
LatestVCSWkid(0)
Full Extent:
XMin: -1.01389611402E7
YMin: 3941564.736690483
XMax: -9904405.388017783
YMax: 4098332.769199997
Spatial Reference: 102100
(3857)
LatestVCSWkid(0)
Pixel Size X: 0.3389974883759699
Pixel Size Y: 0.33899748837597066
Band Count: 1
Pixel Type: F32
RasterFunction Infos: {"rasterFunctionInfos": [
{
"name": "None",
"description": "Make a Raster or Raster Dataset into a Function Raster Dataset.",
"help": ""
},
{
"name": "umbra_RFT",
"description": "umbra RFT",
"help": ""
}
]}
Mensuration Capabilities: None
Inspection Capabilities:
Has Histograms: true
Has Colormap: false
Has Multi Dimensions : false
Rendering Rule:
Min Scale: 0
Max Scale: 0
Copyright Text: NASA Disasters Program, Umbra. For derived products: “Includes copyrighted material of Umbra. All rights reserved.” This work utilized data made available through the NASA Commercial Satellite Data Acquisition (CSDA) program."
Service Data Type: esriImageServiceDataTypeGeneric
Min Values: -18.181394577026367
Max Values: -4.985787391662598
Mean Values: -12.076638621458445
Standard Deviation Values: 1.8519408542766564
Object ID Field: OBJECTID
Fields:
-
OBJECTID
(
type: esriFieldTypeOID, alias: OBJECTID
)
-
Shape
(
type: esriFieldTypeGeometry, alias: Shape
)
-
Name
(
type: esriFieldTypeString, alias: Name, length: 200
)
-
MinPS
(
type: esriFieldTypeDouble, alias: MinPS
)
-
MaxPS
(
type: esriFieldTypeDouble, alias: MaxPS
)
-
LowPS
(
type: esriFieldTypeDouble, alias: LowPS
)
-
HighPS
(
type: esriFieldTypeDouble, alias: HighPS
)
-
Category
(
type: esriFieldTypeInteger, alias: Category
, Coded Values:
[0: Unknown]
, [1: Primary]
, [2: Overview]
, ...6 more...
)
-
Tag
(
type: esriFieldTypeString, alias: Tag, length: 100
)
-
GroupName
(
type: esriFieldTypeString, alias: GroupName, length: 100
)
-
ProductName
(
type: esriFieldTypeString, alias: ProductName, length: 100
)
-
CenterX
(
type: esriFieldTypeDouble, alias: CenterX
)
-
CenterY
(
type: esriFieldTypeDouble, alias: CenterY
)
-
ZOrder
(
type: esriFieldTypeInteger, alias: ZOrder
)
-
Date
(
type: esriFieldTypeDateOnly, alias: Date
)
-
Shape_Length
(
type: esriFieldTypeDouble, alias: Shape_Length
)
-
Shape_Area
(
type: esriFieldTypeDouble, alias: Shape_Area
)
Default Mosaic Method: Northwest
Allowed Mosaic Methods: NorthWest,Center,LockRaster,ByAttribute,Nadir,Viewpoint,Seamline,None
SortField:
SortValue: null
Mosaic Operator: First
Default Compression Quality: 75
Default Resampling Method: Bilinear
Max Record Count: 1000
Max Image Height: 4100
Max Image Width: 15000
Max Download Image Count: 20
Max Mosaic Image Count: 20
Allow Raster Function: true
Allow Copy: true
Allow Analysis: true
Allow Compute TiePoints: false
Supports Statistics: true
Supports Advanced Queries: true
Use StandardizedQueries: true
Raster Type Infos:
Name: Raster Dataset
Description: Supports all ArcGIS Raster Datasets
Help:
Has Raster Attribute Table: false
Edit Fields Info: null
Ownership Based AccessControl For Rasters: null
Child Resources:
Info
Histograms
Statistics
Key Properties
Legend
Raster Function Infos
Supported Operations:
Export Image
Query
Identify
Compute Histograms
Compute Statistics Histograms
Get Samples
Compute Class Statistics
Query GPS Info
Find Images
Image to Map
Map to Image
Measure from Image
Image to Map Multiray
Query Boundary
Compute Pixel Location
Compute Angles
Validate
Project