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The NCAR Dropsonde Program
This document outlines the objectives and program design of the National Center for Atmospheric Research (NCAR) dropsonde program. As part of the program, several sondes will be...- publication PDF
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Overlapping magnetic activity cycles and the sunspot number: Forecasting...
The Sun exhibits a well-observed modulation in the number of spots on its disk over a period of about 11 years. From the dawn of modern observational astronomy, sunspots have...- publication PDF
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Exascale computing and data handling: Challenges and opportunities for...
The emergence of exascale computing and artificial intelligence offer tremendous potential to significantly advance Earth system prediction capabilities. However, enormous...- publication PDF
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Wildfire air pollution hazard during the 21st century
Wildfires pose a significant risk to human livelihoods and are a substantial health hazard due to emissions of toxic smoke. Previous studies have shown that climate change,...- publication PDF
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Response of surface ozone over the continental United States to UV radiation...
The response of surface ozone concentrations to decreases in ultraviolet (UV) radiation that are expected from the recovery of stratospheric ozone by the end of the twenty-first...- publication PDF
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Evaluation of the impact of horizontal grid spacing in terra incognita on...
Coupled mesoscaleâmicroscale simulations are required to provide time-varying weather-dependent inflow and forcing for large-eddy simulations under general flow conditions....- publication PDF
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Directional analysis of the storm surge from Hurricane Sandy 2012, with...
Hurricane Sandy in late October 2012 drove before it a storm surge that rose to 4.28 meters above mean lower low water at The Battery in lower Manhattan, and flooded the Hugh L....- publication PDF
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Annual/semiannual variation of the ionosphere
We investigated the relationship between the systematic annual and semiannual variations in the ionosphere and thermosphere using a combination of data analysis and model...- publication PDF
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A method for adaptive habit prediction in bulk microphysical models. Part...
Arctic mixed-phase clouds are ubiquitous, and the persistence of supercooled liquid is not well understood. Prior studies of mixed-phase clouds predict a single axis length...- publication PDF
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Land use change exacerbates tropical South American drought by sea surface...
Observations of tropical South American precipitation over the last three decades indicate an increasing rainfall trend to the north and a decreasing trend to the south. Given...- publication PDF
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Interannual Caribbean salinity in satellite data and model simulations
Aquarius sea surface salinity (SSS) reveals the presence of interannual variations in the Caribbean with about 0.5 psu change between salty and fresh events, which propagate...- publication PDF
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Sea surface temperature warming patterns and future vegetation change
Recent modeling studies of future vegetation change suggest the potential for large-scale forest die-off in the tropics. Taken together with observational evidence of increasing...- publication PDF
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The role of convective gustiness in reducing seasonal precipitation biases...
Precipitation is an important climate quantity that is critically relevant to society. In spite of intense efforts, significant precipitation biases remain in most climate...- publication PDF
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Simulation of equatorial electrojet magnetic effects with the...
n this work, the magnetic variations simulated by the NCAR thermosphere-ionosphere-electrodynamics general circulation model (TIE-GCM) in the vicinity of the magnetic equator...- publication PDF
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Drivers of international fire management personnel deployed to the United States
This study explores drivers of international resources sent to aid with US fire management, focusing on ground and overhead personnel. Using 2008-2020 data, this study...- publication PDF
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Comparison of magnetic perturbation data from LEO satellite constellations:...
During the past decade engineering-grade magnetic field measurements from the low Earth orbiting (LEO) Iridium constellation of communication satellites have been available to...- publication PDF
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Concurrent effect of Alfvén waves and planar magnetic structure on...
Generally, interplanetary coronal mass ejection (ICME) triggers intense and strong geomagnetic storms. It has been established that the ICME sheath-moulded planar magnetic...- publication PDF
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Potential contribution of water management practices under intensive crop...
Optimizing water management practices to mitigate greenhouse gas (GHG) emissions in agroecosystems is of increasing interest under climate change. However, previous studies have...- publication PDF
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CO2 increase experiments using the CESM: Relationship to climate sensitivity...
We examine the response of the Community Earth System Model Versions 1 and 2 (CESM1 and CESM2) to abrupt quadrupling of atmospheric CO2 concentrations (4xCO2) and to 1% annually...- publication PDF
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Groundwater depletion in the Middle East from GRACE with implications for...
In this study, we use observations from the Gravity Recovery and Climate Experiment (GRACE) satellite mission to evaluate freshwater storage trends in the north-central Middle...- publication PDF