ARL Weekly News – December 1, 2017

HQ Alice Crawford the University of Maryland Atmospheric and Oceanic Science departmental seminar on Thursday, 30 November. Her talk was titled HYSPLIT: Modeling the transport and dispersion of atmospheric tracers. At the request of the Washington VAAC (volcanic ash advisory center), Alice Crawford provided HYSPLIT runs simulating the eruption of Agung volcano in Bali. The…

ARL Weekly News – November 24, 2017

HQ Paul Kelly, Xinrong Ren, and Winston Luke are at the Mauna Loa Observatory. The mercury detection equipment at the site will be repaired, calibrated, and improved, and a special calibration study is being conducted. The goal of the study is to improve the accuracy and robustness of measurements of gaseous oxidized mercury. The current…

ARL Weekly News – November 10, 2017

HQ Following a science evaluation and approval from the NCEP Director, HYSPLIT upgraded code was delivered to NCEP Central Operations for the planned April 2018 implementation. The HYSPLIT transport and dispersion model itself has no significant changes. Main changes with this release include adding HRRR, removing RAP, and changing to quarter-degree from half-degree GFS hybrid-level.…

ARL Weekly News – November 3, 2017

HQ Barry Baker and Li Pan published the Model and ObservatioN Evaluation Toolkit (MONET) in the journal Atmosphere (http://www.mdpi.com/2073-4433/8/11/210).  MONET was developed to evaluate the Community Multiscale Air Quality Model (CMAQ) used in the National Air Quality Forecast Capability (NAQFC) modeling system.  MONET is designed to be a modularized Python package for (1) pairing model…

ARL Weekly News – October 27, 2017

HQ Dr. Ariel Stein visited the Department of Meteorology and Atmospheric Sciences at Penn State University. He held meetings with several faculty and graduated students discussing common research interests for future collaborations. In addition, Dr. Stein gave a presentation entitled “NOAA’s HYSPLIT atmospheric transport and dispersion modeling system: history, applications, and new developments” at the…

ARL Weekly News – October 20, 2017

HQ Two scientists from Sandia National Laboratories (SNL) and one scientist from the Nuclear Regulatory Commission (NRC) visited ARL Headquarters this week to provide an update on the progress made and discuss any remaining issues integrating the MELCOR Accident Consequence Code System (MACCS, http://maccs.sandia.gov/maccs.aspx), developed at Sandia National Laboratories for the NRC, with the HYSPLIT…

ARL Weekly News – October 13, 2017

HQ ARL is contributing to the development of the National Weather Service (NWS) Next Generation Global Prediction System (NGGPS) in the disciplines of modeling the suspended particulate matter (aerosol) chemical composition influential for convection and cloud micro-physics. The project is called NGGPS-aerosol. ARL, being the leader in providing emission to the National Air Quality Forecasting…

ARL Weekly News – October 6, 2017

HQ Mark Cohen will be presenting a NOAA/NOS Science Seminar on Oct 24, 2017 entitled: Mercury in the Great Lakes: Can We Explain Trends? Many top predator fish in the Great Lakes (GL) have mercury (Hg) concentrations high enough to pose risks to public health and to fish-eating wildlife. Atmospheric mercury emissions and subsequent atmospheric mercury deposition is the…

ARL Weekly News – September 29, 2017

HQ Dr. Ariel Stein gave an invited presentation at the NOAA Satellite Aerosol Products Workshop on September 25, 2017. He presented the talk entitled “Satellite Aerosol Products in Air Resources Laboratory’s models”. In his presentation, Dr Stein highlighted the latest developments in source term assimilation for volcano and wildfires smoke applications as well as emissions…

ARL Weekly News – September 22, 2017

HQ Glenn Rolph and Fantine Ngan attended the International MACCS User Group meeting during September 14-15, 2017 in Bethesda, Maryland. They gave a presentation “North America Reanalysis Data for Dispersion Applications and Recent HYSPLIT Updates” and had discussions with the development group of MACCS (an accident consequence analysis model) on how HYSPLIT can provide support as an…