High Resolution Measurements and Modeling in the Arctic

Technical Report · Thu Nov 01 04:00:00 EDT 2018

DOI:https://doi.org/10.2172/1483466· OSTI ID:1483466

Roesler, Erika Louise ^[1]; Hillman, Ben ^[1]; Dexheimer, Dari ^[1]; Dennis, Lauren ^[1]; McChesney, Matthew ^[1]; Hardesty, Jasper ^[1]; Namachivayam, Siddharth ^[1]; Jain, Akshay ^[1]

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1. Sandia National Lab., Albuquerque, NM (United States)

This report details the activity of the project, "High Resolution Modeling and Measurements in the Arctic" spanning Fiscal Years 2016 - 2018 supported by the Sandia National Laboratories Laboratory Directed Research and Development (LDRD) program. The project's primary goal was to test the hypothesis that global climate model bias of low boundary layer clouds lacking liquid water in the Arctic could be improved by increasing horizontal resolution in the model. As model resolution is constrained by computational resources, four different model types were explored and compared to test the project's primary theory. Given the Arctic is a data-sparse region lacking robust data sets of liquid water in clouds, this project also obtained in situ measurements of low clouds with sensors on a tethered balloon system to constrain and compare with the models. Although other model biases remained, the liquid water path generally increased with resolution, supporting the original hypothesis.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1483466
• Report Number(s): SAND--2018-13304; 670284
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
58 GEOSCIENCES