From bb0208c1e5f06cc6ff3e83190330ecd61c66438e Mon Sep 17 00:00:00 2001 From: Peter Powers <pmpowers@usgs.gov> Date: Thu, 17 Feb 2022 12:48:13 -0700 Subject: [PATCH] text edits --- docs/pages/Code-Versions.md | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/docs/pages/Code-Versions.md b/docs/pages/Code-Versions.md index c1969682a..56980a878 100644 --- a/docs/pages/Code-Versions.md +++ b/docs/pages/Code-Versions.md @@ -3,7 +3,7 @@ The static datasets of USGS NSHMs prior to 2014 were computed using Fortran (see [nshmp-haz-fortran](https://github.com/usgs/nshmp-haz-fortran]). The static datasets for the 2014 Conterminous U.S. NSHM were computed using the Fortran codes and -[OpenSHA](https://opensha.org/) for the California portion of the model. The dynamic versions +[OpenSHA](https://opensha.org/) (for the California portion of the model). The dynamic versions of the 2008 and 2014 Conterminous U.S. models were then implemented in the 1st version of [nshmp-haz](https://github.com/usgs/nshmp-haz) (on GitHub). This updated Java codebase uses XML source models and supports the web services behind the dynamic calculations of the [Unified Hazard @@ -19,7 +19,7 @@ underlying logic trees and support uncertainty analysis. NSHMs are very detailed and migrating from one format to another is not trivial and prone to error. Moreover, approximations (e.g. using 3.1415 for Pi rather than the the value built into most languages) can yield different results. When multiple such small changes exist, deciphering what -si giving rise to differences in results can be challenging. +is giving rise to differences in results can be challenging. To document the transition from nshmp-haz v1 to v2, we here attach comparison maps at four return periods (475, 975, 2475, and 10,000 year) for the 2018 Conterminous U.S. model. Maps are included @@ -30,7 +30,8 @@ additional epistemic uncertainty added to the the NGA-West2 ground motion models We continue to investigate the cause of other differences but they are small enough that we are comfortable moving forward deploying nshmp-haz v2 codes and models to our public web services and -applications. +applications. This repository includes end-to-end tests for supported NSHMs that may be run +on demand. [Download v1 to v2 difference and ratio maps](https://code.usgs.gov/ghsc/users/pmpowers/nshmp-haz/-/raw/code-version-doc-506/docs/pages/images/comp_JSON_vs_XML_0p2-grid-20220216-BC.pdf?inline=false) -- GitLab