overview of projects throughout the organization
Ilana Pollack (ESSL/ACD) performs a pre-project calibration of a mass flow meter on the HAIS fast-ozone chemiluminescence instrument. The instrument will be used aboard the Gulfstream V during the START08 and Pre-HIPPO field campaigns beginning this month.
Urban weather, fire weather. In February, COMET published a new online course called Weather and the Built Environment. The course provides broadcast meteorologists, educators, and the public with an overview of the evolution of the modern urban environment and its impacts on watershed, air quality, and climate.
Consisting of three units, the course explores past and current U.S. growth patterns and the way our urban areas have evolved from compact population centers to automobile-dependent sprawl; how the built environment affects water that moves through urban watersheds; and how urban landscapes and industrial activities impact air quality and local climate.
Each unit includes information on ways to reduce human impact on water and air, with ideas ranging from simple adjustments in commuting and housekeeping habits to changes in home and road construction.
COMET has released a number of other new publications recently, including Fire Model Matrix, Fire Behavior, and Fire Weather Forecasting: Clear Communications. These online modules are part of the Advanced Fire Weather Forecasters Course. The course addresses training needs of incident meteorologists and fire-weather leaders at the National Weather Service. More information.
START and Pre-HIPPO. The Gulfstream V takes to the skies this month for two field projects that are sharing the same flight operations and instrumentation: START08 (Stratosphere-Troposphere Analyses of Regional Transport) and Pre-HIPPO (HIAPER Pole-to-Pole Observations).
The projects have been joined because of the similarity in the payloads and missions that address the science of both projects. Based at Rocky Mountain Municipal Airport (formerly Jeffco), the joint campaign calls for 150 flight hours over the next two months.
The START research team, led by Laura Pan (ESSL/ACD) and colleagues Elliot Atlas (University of Miami) and Kenneth Bowman (Texas A&M), is studying the chemical and transport characteristics of the atmosphere’s upper tropospheric and lower stratospheric region outside the tropics, including the transition region called the tropopause. Results from the project will help global chemistry-climate models better represent the coupling between dynamics and chemistry under Earth’s current and future climate.
The Pre-HIPPO team, led by a group of investigators that includes Britt Stephens (EOL/TIIMES), is gearing up for HIPPO’s main campaign, which begins in 2009, by testing payload, aircraft, and sampling concepts during the flights.
During HIPPO, the researchers will fly between the high northern and southern latitudes multiple times, measuring cross sections of atmospheric concentrations over the Pacific Ocean from Earth’s surface to the tropopause. In particular, they’ll look at a suite of atmospheric trace gases pertinent to understanding the carbon cycle. The project will provide the first comprehensive, global survey of atmospheric trace gases, covering the full troposphere in all seasons and multiple years. More information.
EOL’s Cliff Heizer (foreground) prepares instruments aboard the Gulfstream V for measuring carbon monoxide and ozone during START. Behind him, Dale Hurst (NOAA/CIRES) works on a gas chromotagraph for measuring hydrofluorocarbons.