Published 2024 | Version v2
Dataset Open

Seismic Anisotropy and Deep Crustal Deformation Across Alaska

Authors/Creators

  • 1. ROR icon The University of Texas at Austin
  • 2. University of Colorado Boulder

Description

This dataset is supplementary to:

Liu, C., & Ritzwoller, M. H. (2024). Seismic anisotropy and deep crustal deformation across Alaska. Journal of Geophysical Research: Solid Earth, 129, e2023JB028525. https://doi.org/10.1029/ 2023JB028525

This dataset contains two NetCDF4 files and one txt file:

1. AK_tti_tensor.nc: Elastic tensor for the TTI model, with variables including C11, C22, .....

2. AK_tti_independent_vars.nc: Independent variables as the output of TTI inversion. The variables include:

  • L:  L=Vsv^2*rho, Love modulus
  • gamma: Shear wave inherent anisotropy amplitude
  • dip: Dip angle of anisotropy folliation plane
  • strike: Strike angle of anisotropy foliation plane
  • eta: eta=F/(A-2L)

Common variables:

  • Longitude: Ranges from -133° to -164° with 1° interval.
  • Latitude: Ranges from 58.5° to 70° with 0.5° interval.
  • Depth: 0 to 100 with 1 km interval
  • layer_type: 1: Sediement layer; 2: Crystalline crust layer; 3: Uppermost mantle layer

3. AK_model_depths.txt: Depths for the base of sediment and Moho used in the inversion at each grid point. 

 

Acknowledgments: We thank Aakash Gupta and Carl Tape for their constructive comments and efforts in testing the model.

 

Files

AK_model_depths.txt

Files (21.4 MB)

Name Size Download all
md5:eb6292e390ce2a1e98f2988b619e6c35
23.5 kB Preview Download
md5:815a0b8ba5fbaea502a87600782230d6
7.8 MB Download
md5:b6f16479b8e4f408a0311a1ca0de710a
13.7 MB Download

Additional details

Funding

U.S. National Science Foundation
3D Characterization of the Alaska-Aleutian Subduction System with Amphibious Array Interferometry 1952209
U.S. National Science Foundation
Seismic Interferometry and Data Assimilation for Lithospheric Structure and Anisotropy Across Alaska 1928395

Dates

Available
2024