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Data collected from the Atmospheric Radiation Measurement Climate Research Facility’s Southern Great Plains site (shown here) was used to evaluate and compare climate model simulations of precipitation.March 2015Science Highlights

Comparing Climate Models to Real World Shows Differences in Precipitation Intensity

Understanding the differences and similarities will help improve how models represent storm clouds and other convective processes. Read More »

During a 10-month ARM experiment in India’s Ganges Valley, instruments including a Doppler lidar (shown here) collected measurements of various atmospheric dynamics, cloud properties, and radiative transfer.December 2014Science Highlights

Large Aerosols Play Unexpected Role in Ganges Valley

ARM study reveals surprising amount of light absorption by large aerosol particles. Read More »

By comparing computational simulations of rainfall with long-term measurements, researchers hope to improve how precipitation is represented in climate models.July 2014Science Highlights

Improving Rainfall Processes in Climate Models

Long-term ARM data used to evaluate precipitation simulations. Read More »

ARM Mobile Facility instruments measure aerosol and cloud properties during a 2008 study in Shouxian, China.July 2014Science Highlights

Higher Clouds Retain Less Energy

ARM data shed light on how altitude affects cloud energy content. Read More »

The Atmospheric Radiation Measurement (ARM) Climate Research Facility has three user facility sites in the tropical western Pacific: Manus, Papua New Guinea; Nauru Island, Republic of Nauru; and Darwin, Australia.July 2014Science Highlights

A Decade of Atmospheric Research in the Tropical Western Pacific

Long-term ARM datasets critical for cloud and solar energy studies. Read More »

Global distribution of black carbon in 2000 among eight different models, whose results diverged the most in polar regions.July 2014Science Highlights

Understanding Soot’s Effect on Snow Reflectivity

Model comparison evaluates black carbon levels and impacts. Read More »

A new method for measuring planetary boundary layer depth has been applied to data collected over 8 years at the ARM program’s Southern Great Plains site, whose central facility is shown here.July 2014Science Highlights

New method to determine planetary boundary layer depth

Combining the strengths of existing techniques, new algorithm could help improve climate models. Read More »

Clouds drift over the coastline outcroppings of Graciosa Island where Atmospheric Radiation Measurement observations were collected for 19 months and used to improve precipitation errors in global climate models.July 2014Science Highlights

ARM Data Help Improve Precipitation in Global Climate Models

Cloud, radiation, and drizzle measurements lead to better simulations. Read More »

Methane emissions estimated in a recent study (A) and compared against the commonly used Emissions Database for Global Atmospheric Research (EDGAR) 4.2 inventory (B and C).July 2014Science Highlights

Some U.S. Methane Sources May Be Larger than Previously Thought

Inventories underestimate emissions from fossil fuel industry and animal husbandry, study finds. Read More »

Data from the ARM Climate Research Facility’s Oklahoma site are advancing the understanding of continental cumulus clouds, which will improve their representation in global climate models.April 2013Science Highlights

Fair-Weather Clouds, Cooling, and Humidity

ARM data offer insights into shallow cumulus clouds over land. Read More »

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