Quarterly
Activity Report
FY2014
Quarter 3
(April -
June, 2014)
Contents
1. HYSPLIT Modeling
Nuclear Fallout
2. HYSPLIT Training
3. HYSPLIT
Workshop
4. Best Aircraft Turbulence Probe
5. Convective
Initiation Project
6.
Project Sagebrush
7. Birch
Creek Valley Wind Flow Study
8. HYRad
9. Wind Forecast Improvement Project 2
10. Great Lakes Restoration Initiative
11. Atmospheric Mercury Network-Mauna Loa Observatory
12.
NCWCP –ARL Chemical Laboratory
13. Aircraft
Observations of Air Pollutants Support Satellite Observations
14. National Air Quality Forecasting
Capability
15. Air Quality Observing System Simulation Experiment
16. AQAST Meeting
17. Ammonia Air-Surface Exchange Study
18. ACCESS Ammonia Modeling
19. 2015 Chapman Conference on the Width of the Tropics
20. Climate engineering seminars
21. GPS Radio Occultation Observations in Climate Research
22. Climate-Weather
Research and Forecast Model
23. Climate Reference Network
Conference
Presentations & Invited Talks
1. HYSPLIT Modeling Nuclear Fallout
Glenn Rolph presented his HYSPLIT modeling work on nuclear
fallout from several Nevada tests in the 1950s at a meeting of the Department
of Energy Meteorological Coordinating Council (DOE DMCC). The DMCC met in
Shepherdstown, WV in April during the Emergency Managers Issues Special
Interest Group annual meeting. A manuscript on this HYSPLIT modeling work entitled,
“Modeling the Fallout from Stabilized
Nuclear Clouds using the HYSPLIT Atmospheric Dispersion Model” was accepted for publication in
the Journal of Environmental Radioactivity. The paper describes how the HYSPLIT
dispersion model was configured to simulate the dispersion and deposition of
nuclear material from a surface-based nuclear detonation using publicly
available information on nuclear explosions.
The model was then run for six nuclear tests conducted in the 1950’s
using both coarse resolution (NCEP/NCAR Reanalysis Project - NNRP) and fine
resolution (Weather Research and Forecasting - WRF) meteorological data and the
predicted dose rates were compared with measured dose rates. Using
meteorological data at the resolution of current operational meteorological
models, HYSPLIT can produce a realistic estimate of the location and magnitude
of a radiological plume from a nuclear explosion. This gives forecasters a tool to provide
local emergency responders with model products for use in emergency exercises. glenn.rolph@noaa.gov
2. HYSPLIT
Training
Glenn Rolph and Roland Draxler gave a 2-day HYSPLIT training workshop to
representatives from the New York State Department of Environmental
Conservation, the New York State Department of Health, and the New York State
Division of Homeland Security and Emergency Services in Albany, NY. The first
day of training was a condensed version of a 3-day HYSPLIT workshop, which ARL
hosts in Maryland each year on the use of the PC version and how to interpret
the results. The second day focused on the web-based HYSPLIT model and its use
for emergency response applications, such as smoke from large industrial and
wild fires. Glenn and Roland also gave a demonstration of the enhanced
version of HYSPLIT designed for the National Weather Service forecast offices
that includes the chemical and nuclear dispersion modules. A
representative from the Albany NWS forecast office, Kevin Lipton, gave a short
presentation on the use of HYSPLIT during a major fire in Albany in 2012, and
discussed the office’s capabilities for providing support during major incidents. glenn.rolph@noaa.gov
3. HYSPLIT Workshop
The annual 3-day
HYSPLIT workshop was given to 25 attendees from June 17-19, 2014, at the NOAA
Center for Climate and Weather Prediction in College Park, Maryland. The
workshop focused on the use of the March 2014 release of the PC model and it’s
Graphical User Interface. Participants
included researchers and operational dispersion modelers from as far as India,
Pakistan, and China as well as participants from the U.S. Forest Service, the
National Weather Service, the Army Corps of Engineers, the Department of
Homeland Security, and the Defense Threat Reduction Agency. glenn.rolph@noaa.gov
4. Best
Aircraft Turbulence Probe
An amended
version of NOAA Technical Memorandum ARL-267 was published in May to address
some minor data errors in the original publication. The amended version provides
details of the instruments on the Best Aircraft Turbulence (BAT) probe and their
use in the greenhouse gas study in Prudhoe Bay, Alaska in August, 2013. One of the instruments on
the probe, the OpSens fiber-optic temperature sensor
firmware, was modified to operate by default without the “Adaptive” filter
enabled. This modification will ensure
the frequency response of the sensor is more appropriate for the flight
conditions. ed.dumas@noaa.gov, R. Dobosy, B. Baker.
5. Convective Initiation Project
The
Atmospheric Turbulence and Diffusion Division (ATDD) began the first of two
field experiments for the Convective Initiation Project. Five tower systems
were deployed in northern Alabama, near Huntsville. The stations are collecting
data on the surface energy fluxes and mean state variables over various
land-use types. The field site location is the Tennessee Valley Research and
Extension Center (TVREC) operated by Auburn University. The nearly 800 acre TVREC
is near Belle Mina, Alabama, located just north of the Tennessee River, and
just east of Interstate 65. tilden.meyers@noaa.gov, W. Pendergrass, R. White, C. Vogel,
D. Senn, T. Wood
ATDD began to
develop software to read data files from the University of Tennessee Space
Institute’s (UTSI) Navajo aircraft, as well as thermal images made from a FLIR
T420 infrared camera and perform comparative analysis of the various
temperature signals. The goal is to use
the FLIR images to create a mosaic temperature map of the surface of the Earth
directly underneath the aircraft, as well as to have surface temperatures
measured by the co-located NIST-traceable Heitronics
infrared temperature sensor available for direct comparison. Test flights of
the aircraft over the runway at Tullahoma, Tennessee provided test data to
develop the software and data analysis procedures.
Some problems
were encountered in merging test data from the FLIR and Heitronics
because of inadequate time synchronization between the data system and the FLIR
camera system. These problems are being addressed and the system is expected to
be operational in time for the intensive flight period in late July / early
August near Belle Mina, Alabama. Flight plans for operation of the UTSI
aircraft over the Belle Mina test site are also being developed to allow
measurement of the overall temperature field from an altitude of 7500 feet AGL
over a 10 km x 12 km grid that will encompass the entire test site, as well as
more detailed observations from 2000 feet AGL over the four flux towers at each
of the agricultural sites within the Belle Mina test area. These flights will be timed to coincide with
MODIS satellite overpass times, as well as other observation systems in use
over the Belle Mina test site. ed.dumas@noaa.gov, B. Baker
A search for
a post-doctoral associate who will assist with the numerical modeling of convective
initiation began earlier in the year. By March, ARL had received eleven
applications, but, for various reasons, no one was hired. ARL re-advertised the post- doctoral
position, limiting the position location to ATDD in Oak Ridge, TN and FRD in
Idaho Falls. Eleven new applications were received and interviews will start in
July. Modeling of convective initiation is being led by FRD within ARL. FRD
will use data obtained from ATDD’s field campaigns to evaluate weaknesses in
the current parameterizations of boundary layer processes.
FRD is
archiving output from the High Resolution Rapid Refresh (HRRR) model to support
the intensive field campaigns. The output from the full HRRR domain is too
large to download, so the archiving is limited to a sub-domain approximately
275 x 275 km over northern Alabama. A new HRRR forecast is generated hourly, so
twenty-four forecasts of 15 hours duration each are archived every day. The
archiving software also generates various convection-related parameters from
the forecasts. These parameters are based on a relatively new convection
concept called the Heated Condensation Framework. richard.eckman@noaa.gov
6. Project Sagebrush
Major
progress was made on putting together a comprehensive data report for Phase 1
of Project Sagebrush, designated SAGE13. The report will provide a detailed
description covering all aspects of experimental design, instrumentation,
measurements, quality control procedures, and the final database for the
project. The largest gap in the data report is related to the availability of
meteorological measurements from Washington State University (WSU). When those
become available in July FRD will be able to complete the report.
Measurements
continue on the Grid 3 tall tower in collaboration with WSU. These were begun
as part of Project Sagebrush in late September and will continue into at least
August. The combination of measurements provided by WSU and FRD will provide a
very detailed look at the vertical profiles of turbulence. Ultimately the Grid 3
tower measurements will provide data for the Project Sagebrush tracer tests as
well as a rich database for separate comprehensive analyses of vertical
turbulence structures over a broad range of conditions. Bruce Hicks has been
provided with data collected by FRD from September, 2013 through April, 2014 to
assist with his turbulence research. Receipt of the WSU portion of the data is
pending.
Some
preliminary analyses of the tracer data sets have been conducted leading to
some unexpected results with regard to the plume dispersion parameters σy and σθ.
We are presently attempting to identify the source(s) of the differences
between our observations and those from decades old studies that have provided
the basis for much of the accepted dispersion science. dennis.finn@noaa.gov, Rick Eckman
7. Birch Creek Valley Wind Flow Study
The draft
manuscript “Diurnal Late Spring and Summertime Wind Patterns on the Snake River
Plain and the Influence of Complex Terrain Factors” was prepared. It summarizes
results from the first phase of the Birch Creek Valley measurements. Follow up
work on the second phase is stalled pending availability of data from the U.S.
Forest Service Fire Sciences Laboratory. dennis.finn@noaa.gov
8. HYRad
At the
request of the Department of Energy (DOE) Emergency Operations Center (EOC) FRD
began implementing the use of multiple sources for plume modeling in HYRad. It was successfully accomplished in limited testing
that identified the requisite file formats, however,
further work is necessary to implement it through the user interface. dennis.finn@noaa.gov, Brad Reese
FRD received
three unrelated inquiries from different parties concerning the implementation
of HYRad on local systems. One inquiry was from the DOE
EOC. A second inquiry was from an Idaho State University research group working
on probabilistic dose modeling assessments. The third inquiry was from Cliff Glantz, Chairman of the DOE Emergency Management Issues
Special Interest Group Subcommittee on Consequence Assessment and Protective
Actions. Dr. Glantz’s request concerned
the desire to work toward a wider usage of
HYRad at other DOE facilities. While this
demonstrates high regard for HYRad, FRD has
difficulty complying with the request. The HYRad code
that provides the actual plume dispersion, dose calculation, and plume file
generation could be readily exported for wider usage, however, much of what is
regarded as HYRad is actually the user interface that
generates the appropriate input files, displays the plume(s) and other output,
and handles a multitude of other tasks. The user interface is highly customized
to the FRD system and to Idaho National Laboratory EOC applications. It would
be complicated to export appropriate code to other users and facilities. FRD is
evaluating how to most effectively respond to these inquiries. brad.reese@noaa.gov
9. Wind Forecast
Improvement Project 2
Plans
continue to be made for the NOAA-Department of Energy Wind Forecast Improvement
Project 2 (WFIP2) that will extend the research into complex terrain. FRD
visited one of the wind farms owned by British Petroleum and discussed with the
on-site team the possibility of deploying instruments for the WFIP2. The farm
has three 80 meter high meteorological towers. The most difficult issue will be
finding a good location for a 915 MHz radar wind profiler. Locations with AC
power also tend to have nearby turbines that can interfere with the radar
signal. For the surface-based flux instrumentation, the southernmost
meteorological tower on the farm appears to be a promising location. In order
to move forward, FRD is waiting for approval of the final NOAA WFIP2 budget. kirk.clawson@noaa.gov, Rick Eckman
10. Great Lakes Restoration Initiative
The
3rd year of the atmospheric mercury modeling work under the Great Lakes
Restoration Initiative has continued, examining the consequences of alternative
future mercury emissions scenarios. Extensive, additional analyses
were carried out on the IPCC-based emissions scenarios obtained from the Lei et
al. work (Atmos. Chem. Phys. 14, 783-795, 2014), and a number of inconsistencies were found.
New methods of interpolation and estimation were developed, tested, and
implemented to create a more accurate input dataset for the HYSPLIT-Hg model.
Using these refined emissions scenarios, a new set of HYSPLIT-Hg simulations
were carried out. Analysis of the results of these new simulations has begun.
Further, in order to document the impacts of recent model changes -- e.g.,
involving atmospheric chemistry and the length of the model spin-up period -- a
series of benchmark simulations were carried out, in which each significant
change was implemented in a successive run. The results of these
“incremental-change” simulations will be described in the Final Report for this
phase of the project. Preparation of the Final Report has begun and is expected
to be completed in the coming quarter. mark.cohen@noaa.gov
11. Atmospheric
Mercury Network-Mauna Loa Observatory
Winston Luke and Paul Kelley traveled to the Mauna Loa Observatory (MLO)
to conduct annual maintenance, inspections, calibrations, and repairs to the ARL
trace gas and aerosol instrumentation. The MLO location is one of three ARL sites
that are part of the National Atmospheric Deposition Program’s Atmospheric
Mercury Network. Measurements collected at MLO include speciated
mercury, ozone, sulfur dioxide, and carbon monoxide. In addition, a
humidification system, built in the NCWCP laboratory, was installed. The system
is designed to mitigate the problem of particulate mercury measurement
artifacts, which are often observed in dry air at MLO. Initial testing proved
promising, and additional measurements will be collected in the coming months. winston.luke@noaa.gov
12. NCWCP –ARL Chemical Laboratory
Winston Luke, Paul Kelley, and Xinrong Ren supervised the efforts of a summer intern, Mr.
Joaquin Alzola, a chemistry major at Cornell University. Mr. Alzola calibrated instrumentation and support equipment in
the chemical laboratory. In particular, he performed a useful series of tests
to assess the suitability of reusing spent analytical gold cartridges in a Tekran mercury detector. Being able to reuse the cartridges
could result in substantial cost savings. Mr. Alzola
also assisted Dr. Ren in the installation and calibration of trace gas instrumentation aboard a
light aircraft leased by the University of Maryland for local and regional air
quality studies.
13. Aircraft Observations of Air
Pollutants Support Satellite Observations
Xinrong Ren collaborated with researchers
from the University of Maryland’s Department of Atmospheric and Oceanic Science
to conduct aircraft observations of aerosol and trace
air pollutants over the Eastern Shore of Maryland. The aerial measurements
collected will support the calibration and validation of the GOES EAST
Aerosol/Smoke Product (which is a retrieval of the Aerosol Optical Depth (AOD)
made from the current GOES East visible imagery), and the Suomi
National Polar-orbiting Partnership Visible Infrared Imaging Radiometer Suite
(VIIRS). The VIIRS is a scanning radiometer that collects visible and infrared
imagery and radiometric measurements of the land, atmosphere, cryosphere, and oceans. VIIRS data are used to measure
cloud and aerosol properties, ocean color, sea and land surface temperature,
ice motion and temperature, fires, and Earth's albedo. Initial analysis
of data collected from the aircraft last year showed that the AOD within
the aerosol layer observed by the aircraft is highly correlated with the
particulate matter (PM2.5) concentrations observed at the surface. The new aircraft observations are being further analyzed to
compare to the concurrent satellite observations and surface PM2.5 measurements in order to link the
satellite-observed AOD to the surface PM2.5 .This project was sponsored by NOAA
through the Cooperative Institute for Climate and Satellites-Maryland.
xinrong.ren@noaa.gov
14. National Air Quality Forecasting
Capability
The National Weather Service assigned ARL to lead and deliver a
major upgrade to its National Air Quality Forecasting Capability (NAQFC). The
upgrade includes a distribution of surface particulate matter (PM)
concentrations for a pre-operational implementation evaluation by a select
group of local and state air quality forecasters and managers. PM forecasting
will fill an important gap in the NAQFC. Since 2009, the NAQFC has been
distributing only nation-wide surface ozone concentrations to the general public.
Epidemiology studies confirm PM could be hundreds of times more detrimental to
the human respiratory system. The new upgrade accounts for PM from wild fire
smoke and from wind-blown dust. These are two important sources of PM that
appear to be on the rise. Stringent tests show the PM forecasts do not degrade
the performance of the ozone forecasts. The new upgrade is slated to be made
operational in early FY15. pius.lee@noaa.gov
15. Air
Quality Observing System Simulation Experiment
Dr. Robert Altas, Director of Atlantic
Oceanographic and Meteorological Laboratory, visited ARL HQ in mid-June to
discuss the potential to apply an Observing System Simulation Experiment (OSSE)
Testbed to ARL’s Air Quality Analysis Project. Dr.
Atlas and Pius Lee gave two back-to-back ARL-wide seminars to report on the
current status of their respective projects in OSSE and Air Quality Reanalysis.
The next step in the study will be for ARL to generate a “nature” run over an
extended period that includes representative seasonal and chemical variability
of a broad range of Air Quality regimes. The “nature” run would become the
base-line for evaluation of viability of the OSSE for Air Quality
applications. pius.lee@noaa.gov
16. AQAST Meeting
The 7th NASA sponsored Air Quality Applied Science Team (AQAST)
meeting was hosted by Dr. Daniel Jacob of Harvard University, leader of the
AQAST program, at Harvard in June. PIs Greg Carmichael and Pius Lee shared a
talk concerning one of the six so-called Tiger Team projects selected FY14-15
entitled “Building a prototype Chemical Data Assimilation System to serve State
Implementation modelers as well as the international Hemispheric Transport of
Air Pollutant Project”. The project leveraged many state-of-the-science
developments recently achieved by the members of their team which included
researchers from U Iowa, George Tech, U Alabama, NCAR, Naval Research Lab. and
NESDIS. pius.lee@noaa.gov
17. Ammonia
Air-Surface Exchange Study
ATDD began the atmospheric ammonia exchange study in an
intensively managed agricultural system at the University of Illinois,
Urbana-Champaign (UIUC) Energy Biosciences Institute. The Institute is a
320-acre farm and the world's largest outdoor research center devoted to
bioenergy crops. The study is being conducted in collaboration with UIUC. Two
systems, ATDD’s flux gradient system and UIUC’s relaxed eddy accumulation
system, are measuring ammonia fluxes over a maturing corn field. Mark Heuer, Jason Caldwell, and Daryl Sibble
conducted maintenance visits to resolve issues associated with the heated
sample line for the cavity ring-down spectrometer. Due to the failure of
a thermocouple that measured temperature along the sample line, a new sample
line was constructed and installed. The sampling heights were also adjusted in
relation to crop height. Simone Klemenz
analyzed filters from the UIUC relaxed eddy accumulation (REA) system using ion
chromatography, which will provide information on ammonium (NH4+) concentrations.
In late July, in-canopy ammonia measurements will be collected at eight
heights-seven within the maize canopy and one above the canopy- using the two systems. Also, Thomas Caillaud completed his internship with LaToya Myles at
ATDD. He is a graduate student studying with Erwan Personne at AgroParisTech. He
collaborated with Rick Saylor and Daryl Sibble on
using data collected from the ammonia exchange study to run the SURFATM-NH3
model. He also translated the protocols and associated model documentation from
French to English. The data from the study also will be used in the ACCESS-NH3
model. latoya.myles@noaa.gov
18. ACCESS Ammonia Modeling
Modeling activities associated with the ammonia air-surface
exchange study were performed. Rick Saylor and Alex Hurns
explored process modeling of ammonia evasion from the corn field using the
ACCESS-NH3 model. Ms. Hurns is a rising senior
at Mississippi Valley State University and a 2014 NOAA Hollings Scholar. The
modeling carried out by Ms. Hurns is being used to
assist in the analysis of ammonia flux data obtained this summer from LaToya
Myles' field measurement campaign in Illinois. Additional field data
collected in late July will also be used in the ACCESS-NH3 modeling. rick.saylor@noaa.gov
19. 2015
Chapman Conference on the Width of the Tropics
Dian Seidel, along with three colleagues (including Sean Davis,
NOAA/ESRL), began to lay plans for an American Geophysical Union Chapman
Conference in summer 2015 on "The Width of the Tropics: Climate Variations
and their Impact.” The interdisciplinary conference will explore a range of
questions related to tropical belt width and climate. A growing body of
literature addresses the possibility of changes in the position and strength of
the Hadley cell, jet streams, and zonal-mean atmospheric circulation. These changes
could manifest as changes in surface climate, particularly precipitation, and
have important societal and ecological consequences. A number of studies have
identified poleward movement in the boundary between
tropical and extratropical zones; this phenomenon has
been referred to as “tropical widening” or “expansion of the tropical belt.”
However, there are many open observational and theoretical questions regarding
tropical widening, and, although the topic is inherently multi-disciplinary,
there has been little interaction among scientists addressing different aspects
of the problem. The Chapman Conference will welcome researchers studying
mechanisms, observations, and modeling of the tropical belt width; its changes
on seasonal to paleoclimatic time scales; and the associated
societal and ecosystem impacts and feedbacks. dian.seidel@noaa.gov
20. Climate
engineering seminars
21. GPS
Radio Occultation Observations in Climate Research
Dian Seidel gave an invited presentation at a Workshop on
Applications of GPS Radio Occultation
measurements, 16-18 June 2014. GPS radio occultation
(GPS-RO) measurements are now an important component of the global observing
system, because they complement the information provided by satellite
radiances. This workshop, jointly organized by the European Centre for
Medium-Range Weather Forecasts and the European Organisation for the
Exploitation of Meteorological Satellites, Radio Occultation Meteorology
Satellite Application Facility, reviewed the use of the GPS-RO data at the
major numerical weather prediction centers. Dian contributed to a workshop
evaluation of the utility of GPS-RO observations in climate monitoring and
research, which is becoming more feasible as the data record gets longer. dian.seidel@noaa.gov
22. Climate-Weather Research and Forecast Model
Using the
Climate-Weather Research and Forecast (CWRF) model, a series of
downscaling/nesting experiments were performed and analyzed. Two manuscripts
were subsequently prepared and will be submitted for internal ARL review. julian.wang@noaa.gov
Two Climate Reference Network sites were installed in Alaska, Deadhorse and Ivotuk sites. Annual
maintenance visits were made throughout the country. mark.e.hall@noaa.gov
Chai, T. and R.
R. Draxler. (2014) Root mean square
error (RMSE) or mean absolute error (MAE)? – Arguments against avoiding RMSE in
the literature, Geoscientific Model Development. 7,
1247-1250. doi:10.5194/gmd-7-1247-2014
Hicks,
B. B., W. R. Pendergrass III, C.
A. Vogel, R. N. Keener Jr., and S. M. Leyton
(2014). On the Micrometeorology of the Southern Great Plains 1: Legacy
Relationships Revisited. Boundary-Layer Meteorology. 151 (3): 389-405. doi:10.1007/s10546-013-9902-2.
Hicks,
Bruce B., William R. Pendergrass, Christoph A. Vogel, and Richard S. Artz (2014). On the Drag and Heat of Washington, D.C., and
New York City. Journal of Applied Meteorology and
Climatology. 53 (6),
1454–1470. http://dx.doi.org/10.1175/JAMC-D-13-0154.1
Mahmood, R., R.A. Pielke, K. G. Hubbard, D. Niyogi,
P. A. Dirmeyer, C. McAlpine,
A. M. Carletin, R. Hale, S. Gameda,
A. Betran-Przekurat, B. Baker, R. McNider, D. R. Legates, M.
Shepherd, J. Du, P. D. Blanken, O. W. Frauenfeld, U. S. Nair, and S. Fall (2014). Land cover changes and their biogeophysical
effects on climate. International Journal of Climatology, 34(4), 929-953. doi: 10.1002/joc.3736
Ren X., W.T. Luke, P. Kelley, M.
Cohen, F. Ngan, R. Artz, J. Walker, S. Brooks, C. Moore,
P. Swartzendruber, D. Bauer, J. Remeika,
A. Hynes, J. Dibb, J. Rolison,
N. Krishnamurthy, W.M. Landing, A. Hecobian, J.
Shook, and L.G. Huey. (2014) Mercury Speciation at a Coastal Site in the
Northern Gulf of Mexico: Results from the Grand Bay Intensive Studies in Summer 2010 and Spring 2011. Atmosphere. 5(2):230-251. doi:10.3390/atmos5020230
Conference Presentations
& Invited Talks
LaToya Myles gave a talk entitled “Linking ecosystem research,
services, and management” at the 5th Annual NOAA/Northern Gulf
Institute Hypoxia Research Coordination Workshop at John C. Stennis
Space Center in Mississippi. She also facilitated a breakout group
discussion of key science priorities to advance ecological modeling
capabilities that address management needs. The workshop was a forum for
strengthening coordination between physical, biological, and socioeconomic
modelers of Gulf of Mexico hypoxia and Mississippi River diversions.
Pius Lee, Rick Saylor and Barry Baker participated in the
Southeastern Atmosphere Study (SAS) Data Workshop in Boulder, CO. SAS was
a combined effort of several atmospheric chemistry field campaigns last summer
conducted over the Southeast U. S., including NOAA's Southeast Nexus
aircraft-based study and the USEPA and NSF-funded Southern Oxidant and Aerosol
Study. Two posters were presented at the SAS workshop summarizing
preliminary modeling results over the Southeast for last summer:
·
"Comparisons of the NOAA P3 with the CAMx
and CMAQ Models during the Southeastern Nexus" by Barry Baker, Rick
Saylor, Pius Lee, Daniel Tong and Li Pan, and
·
"PBL and surface characteristics: Tower and IMPROVE site
measurements during the Southeast Atmosphere Study 2013" by Pius Lee, Rick
Saylor, Barry Baker, Hyuncheol Kim, Daniel Tong and
Li Pan. The very rich dataset obtained last summer during SAS will be
used in a variety of air quality and atmospheric chemistry modeling studies
over the next few years.
Daniel Tong presented at the 2014 Global Emission InitiAtive (GEIA) workshop held at the National Center
for Atmospheric Research in Boulder, CO. GEIA is an international
emissions community that aims to advance emissions science and enhance
access to emissions data. Daniel’s talk was on the "Impact of the
2008 Global Recession on NOx emissions in US megacities." NOAA and
several other federal agencies were present at the workshop to
provide overviews of their corresponding programs relevant to emissions of
air pollutants and greenhouse gases.
Pius Lee,
along with co-PI Greg Carmichael, presented on the progress on “Building a
prototype Chemical Data Assimilation System to serve State Implementation
modelers as well as the international Hemispheric Transport of Air Pollutant
Project” at the 7th NASA-sponsored Air Quality Applied Sciences Team
meeting at Harvard. The project leveraged many state-of-the-science
developments recently achieved by members of the project team, which includes
researchers from University of Iowa, George Tech, University of Alabama, National Center for Atmospheric Research, the Naval Research
Lab. and NOAA/NESDIS.
LaToya Myles and Daryl Sibble traveled
to Silver Spring on May 22 to give
presentations during the orientation for NOAA EPP Undergraduate Scholars.
Their presentations focused on current ammonia research activities and
described future opportunities for internships.