i
Yield Estimates for the Six North Korean Nuclear Tests From Teleseismic P Wave Modeling and Intercorrelation of P and Pn Recordings
-
2019
Source: JGR Solid Earth (2019). 124(5): 4916-4939
[PDF-5.65 MB]
Select the Download button to view the document
This document is over 5mb in size and cannot be previewed
Details:
-
Journal Title:Journal Of Geophysical Research: Solid Earth
-
Personal Author:
-
NOAA Program & Office:
-
Description:The yields of the six declared underground nuclear tests at the North Korean test site are estimated using high‐frequency teleseismic P wave amplitude modeling and waveform equalization of short‐period teleseismic P waves and regional Pn signals. Average amplitudes of the first cycle of high‐frequency (>4 Hz) filtered P wave displacements for each event, adjusted for station sampling relative to the 3 September 2017 event, are modeled using Mueller‐Murphy explosion source models for granite and a constant‐Q attenuation operator with t* = 0.78 ± 0.03 s. The yield estimates range from 2.6 to 230 kt. Intercorrelation, a waveform equalization procedure that accounts for source function and depth‐phase variations between events, is applied to large sets of filtered (>0.8 Hz) teleseismic P and regional Pn seismograms. Searching over yield and burial depth for both events gives optimal parameters by simultaneous waveform equalization of multiple stations. Using specified burial depths spanning from 430 to 710 m for all events based on estimated locations in the source topography assuming tunneling with 4% grade, along with allowing for reduction in source region velocity due to weathering, rock layering, and damage zones, gives yield estimates ranging from 1.4 to 250 kt. Comparison of predicted and observed spectral ratios of Pn phases at station MDJ establishes that these source models are reasonable. Using the preferred yield estimates from intercorrelation, W IC, a yield‐calibrated relation of m bNEIC = 0.9 log10W IC + 4.13 is determined for the North Korean test site.
-
Keywords:
-
Source:JGR Solid Earth (2019). 124(5): 4916-4939
-
Document Type:
-
Place as Subject:
-
Rights Information:Other
-
Compliance:Submitted
-
Main Document Checksum:urn:sha256:2820fa4054632c0d5482e8f9d3cd32059a3d0ca059d94cfdddbc906c6fd5e4d9
-
File Type:
Supporting Files
-
No Additional Files
More +
Related Documents
-
Personal Author:Scheuerer, Michael ;Hamill, Thomas M.2019 | Mon. Wea. Rev. (2019) 147 (3): 1047–1064Description:Forecast uncertainty associated with the prediction of snowfall amounts is a complex superposition of the uncertainty about precipitation amounts and ...2019 | Journal of Geophysical Research: Oceans,;Description:Stratification of the upper few meters of the ocean limits the penetration depth of wind mixing and the vertical distribution of atmospheric fluxes. S...2019 | Elem Sci Anth, 7(1), p.39.Description:From the earliest observations of ozone in the lower atmosphere in the 19th century, both measurement methods and the portion of the globe observed ha...2019 | Journal of Geophysical Research: Atmospheres, 124, 13439-13456Description:We present airborne observations of the vertical gradient of atmospheric oxygen (δ (O2/N2)) and carbon dioxide (CO2) through the atmospheric boundary...2019 | Journal of Geophysical Research: Atmospheres, 124, 7413–7428Description:Deep convection can transport surface moisture and pollution from the planetary boundary layer to the upper troposphere (UT) within a few minutes. The...Personal Author:Mielke-Maday, Ingrid ;Schwietzke, Stefan...2019 | Elem Sci Anth, 7(1), p.13.Description:An intensive coordinated airborne and ground-based measurement study was conducted in the Fayetteville Shale in northwestern Arkansas during September...2019 | Journal of Geophysical Research: Atmospheres, 124, 12141-12156Description:Ice crystals commonly adopt a horizontal orientation under certain aerodynamic and electrodynamic conditions that occur in the atmosphere. While the r...2019 | Journal of Geophysical Research: Atmospheres, 124, 13576-13592Description:Accuracy of cloud predictions in numerical weather models can considerably impact ozone (O-3) forecast skill. This study assesses the benefits in surf...Personal Author:Thompson, Anne M. ;Smit, Herman G. J....2019 | Bull. Amer. Meteor. Soc. (2019) 100 (1): 155–171.Description:The ozonesonde is a small balloon-borne instrument that is attached to a standard radiosonde to measure profiles of ozone from the surface to 35 km wi...2019 | Geophysical Research Letters, 46, 1061-1069.Description:Convective systems dominate the vertical transport of aerosols and trace gases. The most recent in situ aerosol measurements presented here show that ...Evaluating Simulations of Interhemispheric Transport: Interhemispheric Exchange Time Versus SF6 AgeCite2019 | Geophysical Research Letters, 46, 1113-1120.Description:Two recent studies using sulfur hexafluoride (SF6) observations to evaluate interhemispheric transport in two different ensembles of atmospheric chemi...2019 | Journal of Geophysical Research: Atmospheres, 124, 57-71Description:Arctic clouds can profoundly influence surface radiation and thus surface melt. Over Greenland, these cloud radiative effects (CRE) vary greatly with ...Personal Author:Shaw, William J. ;Berg, Larry K....2019 | Bull. Amer. Meteor. Soc. (2019) 100 (9): 1687–1699.Description:In 2015 the U.S. Department of Energy (DOE) initiated a 4-yr study, the Second Wind Forecast Improvement Project (WFIP2), to improve the representatio...Personal Author:Sedlar, Joseph ;Tjernström, Michael2019 | J. Appl. Meteor. Climatol. (2019) 58 (8): 1867–1886Description:Measurements from spaceborne sensors have the unique capacity to fill spatial and temporal gaps in ground-based atmospheric observing systems, especia...Personal Author:White, Allen B. ;Moore, Benjamin J....2019 | Bull. Amer. Meteor. Soc. (2019) 100 (1): 55–70.Description:During winter 2016/17, California experienced numerous heavy precipitation events linked to land-falling atmospheric rivers (ARs) that filled reservoi...Regional Widening of Tropical Overturning: Forced Change, Natural Variability, and Recent TrendsCite2019 | Journal of Geophysical Research: Atmospheres, 124(12), 6104-6119Description:The width of the tropical Hadley circulation (HC) has garnered intense interest in recent decades, owing to the emerging evidence for its expansion in...2019 | Geophysical Research Letters, 46, 2242-2252.Description:The double Intertropical Convergence Zone bias remains a persistent problem in coupled general circulation model simulations. Due to the strong sea su...Personal Author:Oltmans, S. J. ;Cheadle, L. C....2019 | Elem Sci Anth, 7(1), p.6.Description:Data from ground-based ozone (O3) vertical profiling platforms operated during the FRAPPE/DISCOVER-AQ campaigns in summer 2014 were used to characteri...Perturbations of O(D-1) VER, Temperature, Winds, Atomic Oxygen, and TEC at High Southern LatitudesCite2019 | Journal of Geophysical Research: Space Physics,;Description:The study investigates previously unrecognized wind reversals of the daytime thermosphere in the Southern Hemisphere at latitudes of 50 degrees S-70 d...
More +
You May Also Like
Checkout today's featured content at repository.library.noaa.gov