-
An ensemble-based four-dimensional variational data assimilation scheme:...
Applying a flow-dependent background error covariance (B matrix) in variational data assimilation has been a topic of interest among researchers in recent years. In this paper,...- publication PDF
-
Stratospheric air intrusions promote global-scale new particle formation
New particle formation in the free troposphere is a major source of cloud condensation nuclei globally. The prevailing view is that in the free troposphere, new particles are...- publication PDF
-
A statistical inference method for interpreting the CLASP observations
On 2015 September 3, the Chromospheric Lyman-Alpha SpectroPolarimeter (CLASP) successfully measured the linear polarization produced by scattering processes in the hydrogen Ly...- publication PDF
-
Enhancing sub-seasonal soil moisture forecasts through land initialization
We assess the relative contributions of land, atmosphere, and oceanic initializations to the forecast skill of root zone soil moisture (SM) utilizing the Community Earth System...- publication PDF
-
Melting layer detection and observation with the NCAR Airborne W-Band Radar
A melting layer detection algorithm is developed for the NCAR 94 GHz airborne cloud radar (HIAPER CloudRadar, HCR). The detection method is based on maxima in the linear...- publication PDF
-
Modeling Northern Hemisphere ice-sheet distribution during MIS 5 and MIS 7...
The present manuscript compares Marine Isotope Stage 5 (MIS 5, 125-115 kyr BP) and MIS 7 (236-229 kyr BP) with the aim to investigate the origin of the difference in ice-sheet...- publication PDF
-
Sensitivity of 24-h forecast dryline position and structure to boundary...
Recent NOAA Hazardous Weather Testbed Spring Forecasting Experiments have emphasized the sensitivity of forecast sensible weather fields to how boundary layer processes are...- publication PDF
-
Linking global changes of snowfall and wet-bulb temperature
Snowfall is one of the primary drivers of the global cryosphere and is declining in many regions of the world with widespread hydrological and ecological consequences. Previous...- publication PDF
-
Arctic atmospheric rivers in a changing climate and the impacts on sea ice
Atmospheric rivers (ARs) transport heat and moisture from lower latitudes to the Arctic, contributing to sea ice loss. As climate warming and sea ice decline continue,...- publication PDF
-
Boundary Layer Profile Measurement System
The NCAR Field Observing Facility developed a new tethered-balloon wing system that accurately measures the vertical profile of temperature, wind speed, wind direction, and...- publication PDF
-
A U.S. CLIVAR project to assess and compare the responses of global climate...
The U.S. Climate Variability and Predictability (CLIVAR) working group on drought recently initiated a series of global climate model simulations forced with idealized SST...- publication PDF
-
Integrating anthropogenic heat flux with global climate models
Nearly all energy used for human purposes is dissipated as heat within Earth's land-atmosphere system. Thermal energy released from non-renewable sources is therefore a climate...- publication PDF
-
Hydrocarbons in the upper troposphere and lower stratosphere observed from...
Satellite measurements from the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) are used to examine the global, seasonal variations of several...- publication PDF
-
Numerical simulation of the 6âday wave effects on the ionosphere: Dynamo modulation
The Thermosphere-Ionosphere-Mesosphere Electrodynamics General Circulation Model (TIME-GCM) is used to theoretically study the 6 day wave effects on the ionosphere. By...- publication PDF
-
Climatology of clear-air turbulence in upper troposphere and lower...
Spatial and temporal distributions of Clear-Air Turbulence (CAT) in the Northern Hemisphere were investigated using 41 years (1979-2019) of the European Centre for Medium-range...- publication PDF
-
EMDNA: An Ensemble Meteorological Dataset for North America
Probabilistic methods are useful to estimate the uncertainty in spatial meteorological fields (e.g., the uncertainty in spatial patterns of precipitation and temperature across...- publication PDF
-
Understanding the effects of polar mesospheric clouds on the environment of...
This study focuses on the effects of polar mesospheric cloud (PMC) formation on the chemical environment of the mesosphere and lower thermosphere. Of specific interest is how...- publication PDF
-
A constellation of microsatellites promises to help in a range of geoscience...
An octet of microsatellites to be launched in 2003 promises to deliver a large amount of useful data for meteorological, climatic, ionospheric, and geodetic research as well as...- publication PDF
-
CAM-SE-CSLAM: Consistent coupling of a conservative semi-Lagrangian...
An algorithm to consistently couple a conservative semi-Lagrangian finite-volume transport scheme with a spectral element (SE) dynamical core is presented. The semi-Lagrangian...- publication PDF
-
Improving large-domain convection-allowing forecasts with high-resolution...
Analyses with 20-km horizontal grid spacing were produced from continuously cycling three-dimensional variational (3DVAR), ensemble square root Kalman filter (EnSRF), and...- publication PDF
