| snippet:
|
ARIA Line of Sight Surface Displacement Maps (JAXA ALOS-2) for the Türkiye Earthquakes |
| summary:
|
ARIA Line of Sight Surface Displacement Maps (JAXA ALOS-2) for the Türkiye Earthquakes |
| extent:
|
[[36.21852,36.04843],[37.8103378770001,38.28537]] |
| accessInformation:
|
NASA-JPL/Caltech ARIA Team, JAXA |
| thumbnail:
|
thumbnail/thumbnail.png |
| maxScale:
|
1.7976931348623157E308 |
| typeKeywords:
|
["Data","Service","Map Service","ArcGIS Server"] |
| description:
|
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN STYLE="font-weight:bold;">Date of Image:</SPAN></P><P><SPAN>2/8/2023</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>Scientists working with Advanced Rapid Imaging and Analysis (ARIA) team at NASA's Jet Propulsion Laboratory and California Institute of Technology, both in Pasadena, California, created these displacement maps with measurements of the surface displacements, in the radar line-of-sight, caused by the recent major earthquake in Türkiye, the Mw 7.8 (February 6, 2023) main shock near the city of Nurdagi followed by Mw 7.5 aftershock within 9 hours.</SPAN></P><P><SPAN>The maps were derived from synthetic aperture radar (SAR) images from the ALOS-2 L-band operated by the Japanese Aerospace Exploration Agency (JAXA) ALOS-2 SAR satellite. The team computed the interferometric difference (interferogram or interferometric SAR) and pixel offset tracking between the post-event image acquired on February 8, 2023 with a pre-event image acquired on April 6, 2022, on the ALOS-2 descending (satellite moving south) track 78. The interferometric SAR (InSAR) measures the component of surface displacement in the line-of-sight (LOS) between the ground and the satellite, which is at an angle of about 30 degrees from the vertical up and to the east. </SPAN></P><P><SPAN STYLE="font-weight:bold;">NOTE</SPAN><SPAN>: The line-of-sight displacement (LOS) measurement is relative, and the dataset has not been calibrated to any ground location so there is a bias of the reference level, which is unknown. This data has not yet been validated. This displacement map should be used as guidance to identify areas of significant ground displacement, and may be less reliable over snow-covered and vegetated areas.</SPAN></P><P><SPAN STYLE="font-weight:bold;">Suggested Use:</SPAN></P><P><SPAN STYLE="font-style:italic;">Displacement (UNW): </SPAN><SPAN>Red colors indicate increasing displacement towards the East, while the Blue areas indicate increasing displacement towards the West</SPAN></P><P><SPAN STYLE="font-style:italic;">Along Track Displacement (AZI): </SPAN><SPAN>Red colors indicate increasing displacement towards the South-Southwest, while the Blue areas indicate increasing displacement towards the North-Northeast</SPAN></P><P><SPAN STYLE="font-style:italic;">Across Track Displacement (RNG): </SPAN><SPAN>Red colors indicate increasing displacement towards the East, while the Blue areas indicate increasing displacement towards the West</SPAN></P><P><SPAN STYLE="font-weight:bold;">NOTE</SPAN><SPAN>: Small vertical displacements have also occurred, but the primary surface displacements were in the horizontal plane.</SPAN></P><P><SPAN STYLE="font-weight:bold;">Satellite/Sensor:</SPAN></P><P><SPAN>Japan Aerospace Exploration Agency (JAXA) ALOS-2 PALSAR-2</SPAN></P><P><SPAN STYLE="font-weight:bold;">Resolution:</SPAN></P><P><SPAN>30 meters</SPAN></P><P><SPAN STYLE="font-weight:bold;">Credits:</SPAN></P><P><SPAN>NASA-JPL/Caltech ARIA Team</SPAN></P><P><SPAN>The ALOS-2/PALSAR-2 Data Products are provided by JAXA, facilitated by NASA and analyzed at the NASA Jet Propulsion Laboratory.</SPAN></P><P><SPAN STYLE="font-weight:bold;">Esri REST Endpoint:</SPAN></P><P><SPAN>See URL section on right side of page</SPAN></P><P><SPAN STYLE="font-weight:bold;">WMS Endpoint:</SPAN></P><P><SPAN STYLE="font-weight:bold;">Data Download:</SPAN></P><P><A href="https://aria-share.jpl.nasa.gov:443/20230206_Turkey_EQ/Displacements/" STYLE="text-decoration:underline;"><SPAN>https://aria-share.jpl.nasa.gov/20230206_Turkey_EQ/Displacements/</SPAN></A></P></DIV></DIV></DIV> |
| licenseInfo:
|
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>NASA data and products are freely available to federal, state, public, non-profit and commercial users. This information can be experimental- or research-grade data products and may not be appropriate for operational use. These NASA data products, services, and the Disasters Mapping Portal are intended to aid decision makers and enhance situational awareness, but these data are not guaranteed to be consistently available or routinely updated. Please cite the information according to the direction provided in the metadata. Use of this product should include: "The ALOS-2 data products are processed from original data products copyright (2022-2023) by the Japan Aerospace Exploration Agency (JAXA)"</SPAN></P></DIV></DIV></DIV> |
| catalogPath:
|
|
| title:
|
ARIA Line of Sight Displacement Maps (JAXA ALOS-2) for the Türkiye Earthquakes |
| type:
|
Map Service |
| url:
|
|
| tags:
|
["NASA","NASA Disasters Program","ARIA","NASA JPL","Caltech","JAXA","ALOS-2","SAR","Türkiye","Earthquake"] |
| culture:
|
en-US |
| name:
|
aria_displacement_maps |
| guid:
|
B3BBD04C-4487-4D1B-85A4-6B560BCAF3A1 |
| minScale:
|
0 |
| spatialReference:
|
GCS_WGS_1984 |