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National Black engineer awards celebrate Sandia labs professionals
Three Sandia professionals recently received 2023 Black Engineer of the Year Awards. Danielle Stephenson was lauded as a Senior Technology Fellow, Coby Davis as a Science Spectrum Trailblazer and Ned Adams as a Modern-Day Technology Leader.
March 9, 2023
Inspiring students in West Texas
Last month, Pantex Women in Nuclear hosted Introduce a Girl to Engineering, an event geared toward inspiring girls to pursue careers in STEM. Sandia employees from the Weapons Evaluation Test Laboratory and Tri-Labs, both located at the Pantex Plant outside Amarillo, Texas, participated in the event where students did hands-on activities and had career conversations with STEM professionals.
March 9, 2023
Regional Tropical Rainfall Shifts Under Global Warming: An Energetic Perspective
In order to better understand the mechanisms of future tropical rainfall shifts and their association with remote forcings, we utilize a recently developed framework first presented in Boos and Korty (2016, hereafter BK) that generalizes the atmospheric energy
flux
approach to two dimensions.
March 9, 2023
Optimizing cloud motion estimation and detection of raindrop contamination in ARM cameras
This study investigated the factors affecting cloud motion estimations from camera images using different settings of the phase correlation (PC) and optical flow (OF) methods, concluding that shorter frame intervals provides the most accurate results while image resolution has small effect.
March 8, 2023
Let’s unleash the network judgment: A self-supervised approach for cloud image analysis
We present the application of a new self-supervised learning approach to autonomously extract relevant features from sky images captured by ground-based cameras, for the classification and segmentation of clouds. We present the application of a novel
artificial intelligence
approach to autonomously extract relevant features from sky images, for the characterization of atmospheric conditions.
March 8, 2023
Evolution of droplet size distributions during the transition of stratocumulus clouds to open cells
Low-level stratocumulus clouds critically impact Earth's energy budget by reflecting incoming solar radiation and are challenging to represent in climate models due to fine-scale variability in cloud properties driven by turbulent flow.
March 8, 2023
E3SM Phase 3 Organizational Realignment
The
E3SM
project’s functional organization is realigning to better address the Nation’s strategic challenges. This new organization was presented in a recent review to the Department of Energy’s (DOE) Biological and Environmental Research (BER) program.
March 8, 2023
News Release: Fossil Ridge Wins 33rd Colorado High School Science Bowl
Students from Fossil Ridge will represent the state of Colorado at the U.S. Department of Energy's National Science Bowl in Washington, D.C., to compete for the national title. Fossil Ridge High School continues their winning streak for a third year in a row to dominate this year's Colorado High School Science Bowl and emerge victorious over second-place finisher Fairview High School in the first in-person competition since 2019.
March 6, 2023
Embracing Fine‐Root System Complexity in Terrestrial Ecosystem Modeling
Terrestrial
biosphere models project large-scale biological responses to
climate change.
Historically, leaves have received far more attention in models than fine roots, though roots are critical for plant resource acquisition.
March 2, 2023
Exascale Performance of the Simple Cloud Resolving E3SM Atmosphere Model
Early access to the first U.S. Exascale computer, OLCF Frontier, coincided with the completion of the Simple Cloud Resolving E3SM Atmosphere Model Version 1 (SCREAMv1). Frontier is not yet open for general access, but through DOE’s Exascale Computing Project (ECP) E3SM developers had a 10-day window to test the performance of the new SCREAMv1 model running at a global 3.25 km resolution with 128 vertical layers and 16 prognostic variables.
March 2, 2023
Moisture Sources for Great Lakes Region Precipitation: Climatology and Recent Changes
In the Great Lakes region (GLR), precipitation is an essential component of the net basin supply that drives lake water levels. Understanding the hydrological cycle and moisture sources is crucial to comprehending the historical
hydroclimate
and projecting future changes.
March 2, 2023
Characterizing Aerosol Effects on Modeled Cloud Lifetimes Using a Novel Framework
Aerosols,
often emitted alongside greenhouse gases, can brighten clouds and cause significant cooling. However, the uncertainty associated with
aerosol-cloud interactions
(ACI) is large and potentially significant enough to mask a sizable portion of greenhouse gas-related warming.
March 2, 2023