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New seasonal pattern of pollution emerges from changing North American wildfires
Rising emissions from wildfires over recent decades in the Pacific Northwest are known to counteract the reductions in human-produced aerosol pollution over North America. Since...- publication PDF
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New aura microwave limb sounder observations of BrO and implications for Bry
This paper introduces a new inversion algorithm for retrievals of stratospheric BrO from the Aura Microwave Limb Sounder. This version is based on the algorithm described by...- publication PDF
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Low-cost 63% efficient 2.5-kW UHF power amplifier for a wind profiler radar
This paper describes a low-cost 449-MHz 2.5-kW peak pulse amplifier for use in a wind profiling radar. New high-power LDMOS transistors are enabling the use of kilowatt level...- publication PDF
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Detection of âdiffuseâ coronal He I 1083 during the April 8, 2024 solar...
Strong He i 1083 nm atomic line signals have previously been measured during total solar eclipses at coronal heights above the lunar limb. These rather unexpected measurements...- publication PDF
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Extratropical storms induce carbon outgassing over the Southern Ocean
The strength and variability of the Southern Ocean carbon sink is a significant source of uncertainty in the global carbon budget. One barrier to reconciling observations and...- publication PDF
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Observations of infrared sea surface temperature and airâsea interaction...
This study highlights infrared sensor technology incorporated into the global positioning system (GPS) dropsonde platforms to obtain sea surface temperature (SST) measurements....- publication PDF
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A reduced complexity framework to bridge the gap between AGCMs and...
The role of convective parameterizations at high horizontal resolution and their impacts on clouds, circulation, and precipitation processes represent large uncertainties in...- publication PDF
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Explicit forecasts of low-level rotation from convection-allowing models for...
Three diagnostic fields were examined to assess their ability to act as surrogates for tornadoes in a convection-allowing ensemble system run during the spring of 2015. The...- publication PDF
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Simulating mixedâphase opencellular clouds observed during COMBLE:...
Marine cold‐air outbreaks, or CAOs, are airmass transformations whereby relatively cold boundary layer (BL) air is transported over relatively warm water. To more deeply...- publication PDF
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Making global map of the solar surface Br from the HMI vector magnetic field...
The Helioseismic Magnetic Imager (HMI) has made full-disk vector magnetic field measurements of the Sun with cadence of 12 minutes. The three-component solar surface magnetic...- publication PDF
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An assessment of the radiative effects of ice supersaturation based on in...
We use aircraft observations combined with the reanalysis data to investigate the radiative effects of ice supersaturation (ISS). Our results show that although the excess water...- publication PDF
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Regulated large-scale annual shutdown of Amazonian isoprene emissions?
We perform Empirical Orthogonal Function (EOF) analysis on 12 years of global GOME and SCIAMACHY formaldehyde (HCHO) column observations to determine the most significant...- publication PDF
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California annual grass phenology and allometry influence ecosystem dynamics...
Grassâdominated ecosystems cover wide areas of the land surface yet have received far less attention from the Earth System Model (ESM) community. This limits model projections...- publication PDF
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A statistical approach to fast nowcasting of lightning potential fields
Thunderstorms and associated hazards like lightning can pose a serious threat to people outside and infrastructure. Thus, very short-term prediction capabilities (called...- publication PDF
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Elucidating the impacts of COVID-19 lockdown on air quality and ozone...
India implemented a stay-at-home order (i.e. lockdown) on 24 March 2020 to decrease the spread of novel COVID-19, which reduced air pollutant emissions in different sectors. The...- publication PDF
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A three-dimensional multivariate modal analysis of atmospheric...
A new methodology for the analysis of ensemble prediction systems (ENSs) is presented and applied to 1 month (December 2014) of ECMWF operational ensemble forecasts. The method...- publication PDF
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Tropospheric dry layers in the tropical western Pacific: Comparisons of GPS...
We use GPS radio occultation (RO) data to investigate the structure and temporal behavior of extremely dry, high-ozone tropospheric air in the tropical western Pacific during...- publication PDF
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Accurate assessment of land-atmosphere coupling in climate models requires...
Land-atmosphere (L-A) interactions are important for understanding convective processes, climate feedbacks, the development and perpetuation of droughts, heatwaves, pluvials,...- publication PDF
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A Description of the Advanced Research WRF Model Version 4.1
The Advanced Research WRF (ARW) model is a configuration of the Weather Research and Forecasting (WRF) model. This technical note describes the scientific and algorithmic...- publication PDF
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Comparisons of empirical localization techniques for serial ensemble Kalman...
Two techniques for estimating good localization functions for serial ensemble Kalman filters are compared in observing system simulation experiments (OSSEs) conducted with the...- publication PDF
