A5112346618- Meteorological Phenomena and Simulations
- Climate variability and models
- Atmospheric and Environmental Gas Dynamics
- Atmospheric chemistry and aerosols
- Atmospheric aerosols and clouds
- Atmospheric Ozone and Climate
- Tropical and Extratropical Cyclones Research
- Oceanographic and Atmospheric Processes
- Geophysics and Gravity Measurements
- Air Quality Monitoring and Forecasting
- Cryospheric studies and observations
- Ionosphere and magnetosphere dynamics
- Advanced Computational Techniques and Applications
- Precipitation Measurement and Analysis
- Geological and Geochemical Analysis
- Reservoir Engineering and Simulation Methods
- Calibration and Measurement Techniques
- Diverse Interdisciplinary Research Innovations
- Solar Radiation and Photovoltaics
- Traditional Chinese Medicine Analysis
- Photovoltaic System Optimization Techniques
- Anesthesia and Neurotoxicity Research
- Ocean Waves and Remote Sensing
- Magnetic Properties and Applications
- Energy Load and Power Forecasting
NOAA Environmental Modeling Center
2006-2025
National Oceanic and Atmospheric Administration
2001-2024
NOAA National Centers for Environmental Prediction
2009-2024
NOAA National Weather Service
2018-2024
German Meteorological Service
2023
Bohai University
2023
Kunming Medical University
2021
First Affiliated Hospital of Kunming Medical University
2021
Kaili University
2019
IM Systems (United States)
2013-2017
Abstract Results are presented from an intercomparison of single‐column and cloud‐resolving model simulations a cold‐air outbreak mixed‐phase stratocumulus cloud observed during the Atmospheric Radiation Measurement (ARM) programme's Mixed‐Phase Arctic Cloud Experiment. The occurred in well‐mixed boundary layer with cloud‐top temperature − 15 °C. average liquid water path around 160 g m −2 was about two‐thirds adiabatic value far greater than mass ice which when integrated surface to top ....
Abstract The National Oceanic and Atmospheric Administration (NOAA) has developed an advanced regional air quality prediction system (AQPS) within the Unified Forecast System (UFS) framework to improve representations of wildfire emissions their impacts on predictions. This innovative integrates Environmental Protection Agency’s (EPA) Community Multiscale Air Quality (CMAQ) model as a column chemistry with UFS-based atmospheric model, operating in online mode. calculation gas particulate...
The new National Centers for Environmental Prediction (NCEP) numerical seasonal forecast system is described in detail. aimed at a next-generation prediction which focus placed on land processes, initial conditions, and ensemble methods, addition to the tropical SST forcing. atmospheric model physics taken from NCEP–National Center Atmospheric Research (NCAR) reanalysis model, has more comprehensive hydrology improved physical processes. was further upgraded by introducing three...
Abstract Observational records in the past 50 years show an upward trend of boreal‐summer precipitation over central eastern China and a downward northern China. During boreal spring, is southeastern This study explores forcing mechanism these trends association with global sea‐surface temperature (SST) variations on interannual interdecadal time scales. Results based singular value decomposition (SVD) analyses that variability spring summer can be well defined by two centres action for each...
Abstract The current operational NCEP Global Forecast System (GFS) cumulus convection schemes are updated with a scale-aware parameterization where the cloud mass flux decreases increasing grid resolution. ratio of advective time to convective turnover is also taken into account for parameterization. In addition, present deep closure using quasi-equilibrium assumption no longer used sizes smaller than threshold value. For shallow scheme, cloud-base modified be given by function mean updraft...
Abstract This study evaluates the performance of National Centers for Environmental Prediction Global Forecast System (GFS) against observations made by U.S. Department Energy Atmospheric Radiation Measurement (ARM) Program at southern Great Plains site years 2001–04. The spatial and temporal scales are examined to search an optimum approach comparing grid-mean model forecasts with single-point observations. A single-column (SCM) based upon GFS was also used aid in understanding certain...
Abstract Results are presented from an intercomparison of single‐column and cloud‐resolving model simulations a deep, multilayered, mixed‐phase cloud system observed during the Atmospheric Radiation Measurement (ARM) Mixed‐Phase Arctic Cloud Experiment. This was associated with strong surface turbulent sensible latent heat fluxes as cold air flowed over open Ocean, combined low pressure that supplied moisture at mid‐levels. The simulations, performed by 13 4 models, generally overestimate...
A new University of Illinois at Urbana‐Champaign (UIUC) three‐dimensional stratospheric chemical transport model is presented. The consists (1) a hybrid routine; (2) routine that includes the principal gas‐phase and heterogeneous reactions; (3) circulation, temperature, tropospheric humidity fields acquired from UIUC 24‐layer general circulation model. applied to study chemistry‐transport processes in stratosphere. results an 8‐year steady state simulation with 1995 boundary conditions are...
Abstract The fact that the surface and tropospheric temperatures increase with increasing CO2 has been well documented by numerical model simulations; however, less agreement is found for changes in intensity of precipitation hydrological cycle. Here, it demonstrated while both radiative heating resulting higher sea contribute to warm atmosphere, they act against each other changing As a consequence, warmer climate forced cycle can be either more or intense depending upon degree warming.
Abstract This study examines the dependence of surface albedo on solar zenith angle (SZA) over snow-free land surfaces using intensive observations shortwave fluxes made by U.S. Department Energy Atmospheric Radiation Measurement (ARM) Program and National Oceanic Administration Surface Budget Network (SURFRAD) in 1997–2005. Results are used to evaluate Centers for Environmental Prediction (NCEP) Global Forecast Systems (GFS) parameterization several new parameterizations derived from...
This document summarizes the physics schemes used in two configurations of first version operational Hurricane Analysis and Forecast System (HAFSv1) at NOAA NCEP. The package HAFSv1 is same as that NCEP global forecast system (GFS) 16 except for an additional microphysics scheme modifications to sea surface roughness lengths, boundary layer scheme, entrainment rate deep convection scheme. Those are specifically designed improving simulation tropical cyclones (TCs). mainly differ adopted...
The U.S. National Oceanic and Atmospheric Administration (NOAA) provides operational air quality (AQ) predictions over the United States global aerosol forecasts.  current model, Air Quality Forecast Capability (NAQFC) at NOAA, has undergone a fundamental paradigm shift through its integration into Earth system modeling Unified System (UFS) as coupled component, Modeling component (AQMv7). AQMv7 embeds EPA Community Multiscale Model (CMAQ) it  been Weather Service (NWS)...
There are two global aerosol forecast systems currently under development at NOAA, both of which coupled online with the Unified Forecast System (UFS), encompassing ocean, sea ice, wave and land surface components for Subseasonal to Seasonal (S2S) forecasting: UFS-Aerosols UFS-Chem.  The model is planned be implemented into Global Ensemble (GEFS) v13.0 in 2026, incorporates NASA’s 2nd-generation GOCART within a National Operational Prediction Capability (NUOPC)...
The National Centers for Environmental Prediction (NCEP) Global Forecast System (GFS) has exhibited a systematic warm bias, particularly over the Great Plains, with notable discrepancies occurring during nighttime and early morning hours. Despite numerous efforts to address this issue, critical factor been overlooked: role of soil organic matter (SOM) in influencing thermal conductivity soil.  This study investigates impact incorporating SOM into properties within Unified...
The introduction of the Unified Forecast System (UFS) framework as an open and collaborative model development platform at National Oceanic Atmospheric Administration (NOAA) enabled a fundamental paradigm shift in next-generation coupled systems for numerical prediction weather atmospheric composition. recent operational implementation major UFS-based hurricane (HAFS v1 & 2) air quality (AQM v7) forecasting anticipated new wave Earth system models that will fundamentally reshape...
National Oceanic and Atmospheric Administration’s (NOAA’s) Environmental Modeling Center (EMC) is a lead developer of operational Numerical Weather Prediction (NWP) systems at the Service (NWS), which are used for protection life property enhancement economy. EMC transitions to operations maintains more than 20 numerical prediction that by NWS, NOAA, other United States (U.S.) federal agencies, various stakeholders. These developed through close collaboration with...
We use our detailed radiative transfer model and the latitude‐altitude distributions of zonal mean optical properties for Pinatubo aerosol to calculate time evolution its instantaneous forcing. represent this forcing in terms depth aerosol, together with solar insolation, effective emitting temperature, daylight fraction a day, planetary albedo absence aerosol. representation, volcano depths compiled by Sato et al . [1993], adjusted volcanic aerosols from 1850 1994.
In the past 50 years, sea surface temperatures (SSTs) in tropical latitudes have trended toward a warmer ocean state. As response, land temperatures, as well tropospheric (as manifested variations 200-mb heights), also upward. Analysis of trends precipitation fields, however, remains problematic because scarcity observed data over oceans. Using both and from atmospheric general circulation model simulations, are analyzed. The analysis reveals that land, trend differs temperature. Oceanic has...
Interannual variations in the tropical Pacific sea surface temperatures related to El Niño–Southern Oscillation (ENSO) are known influence wintertime climate anomalies over North America. However, role of local land processes this phenomenon is not well understood. Here, using a suite atmospheric general circulation model simulations, it demonstrated that American ENSO greatly enhanced by snow–albedo feedback. Implications feedback mechanism on seasonal predictions and greenhouse gas–induced...
Abstract In this study the influence of snow on atmospheric seasonal mean variability in extratropical latitudes during boreal winter was studied. The motivation for analysis to understand characteristics low-frequency latitudes, and assess if interannual variations could lead potential predictability timescales. assessed from a suite general circulation model (GCM) simulations where depth amount either prescribed seasonally varying climatology, or allowed evolve integration. Further,...
A new dynamical core, known as the Finite-Volume Cubed-Sphere (FV3) and developed at both NASA NOAA, is used in NOAA's Global Forecast System (GFS) limited-area models for regional weather air quality applications. NOAA has also upgraded operational FV3GFS to version 16 (GFSv16), which includes a number of significant developmental advances model configuration, data assimilation, underlying physics, particularly atmospheric composition feedback. Concurrent with GFSv16 upgrade, we couple...
Abstract The impact of assimilating data from the 2011 Winter Storm Reconnaissance (WSR) program on numerical weather forecasts was assessed. Parallel sets analyses and deterministic 120-h were generated using ECMWF four-dimensional variational assimilation (4D-Var) Integrated Forecast System. One set with all normally assimilated plus WSR targeted dropwindsonde data, other only data. Forecasts then two analyses. comparison covered period 10 January to 28 March 2011, during which 98 flights...
Abstract This work investigates the impact of tropical sea surface temperature (SST) biases on Subseasonal to Seasonal Prediction project (S2S) precipitation forecast skill over contiguous United States (CONUS) in Unified Forecast System (UFS) coupled model Prototype 6. Boreal summer (June–September) and winter (December–March) for 2011–18 were analyzed. The west Pacific (WP) North Atlantic (TNA) warm SST is evaluated using multivariate linear regression analysis. A bias WP influences CONUS...