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Project Sagebrush Phase 1 (PSB1) Information

Project Sagebrush Phase 1 was conducted at the Idaho National Laboratory during October 2013, consisting of five SF6 releases on five days, so-called Intensive Observation Periods (IOPs), all occurring in the afternoon under either neutral stability conditions and high wind speeds or unstable conditions and low wind speeds.

The sampling network consisted of concentric arcs located 200, 400, 800, 1600, and 3200 m away from the release location. The tracer was released at a constant rate over two-and-a-half hours and sampling started 30 min after the release, producing 10-min average measured concentrations.


Finn, D., Clawson, K.L., Eckman, R.M., Carter, R.G., Rich, J.D., Strong, T.W., Beard, S.A., Reese, B.R., Davis, D., Liu, H., Russell, E., Gao, Z., Brooks, S., 2015. Project Sagebrush Phase 1. NOAA Tech Memo OAR ARL-268. 362 pp.

Finn, D., Clawson, K.L., Eckman, R.M., Liu, H., Russell, E.S., Gao, Z., Brooks, S., 2016. Project Sagebrush: revisiting the value of the horizontal plume spread parameter σy. J. Appl. Meteor. Climatol. 55, 1305–1322.

Ngan, F., A. Stein, D. Finn, and R. Eckman, 2018: Dispersion simulations using HYSPLIT for the Sagebrush Tracer Experiment. Atmos. Environ., 186, 18-31.

Ngan, F., C. P. Loughner, and A. Stein, 2019: The evaluation of mixing methods in HYSPLIT using measurements from controlled tracer experiments. Atmos. Environ., 219, 117043.

Modified: September 24, 2020
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