Courtesy of Sue Tolley

From: David Greenberg
Veracruz, March 18, 2006

Jetstream 31 Science Goals

The plane in the foreground is a Jetstream 31 (J31). It is flown under contract to the National Aeronautics and Space Administration (NASA). It is one of a number of planes specially outfitted to make scientific measurements of the atmosphere. The J31 will focus on measuring the properties and radiative effects of aerosols, water vapor, clouds and surfaces, as a means of better understanding their impacts on climate and advancing spaceborne and airborne measurement science.

In addition, the J31 is a tool for measuring solar energy and how that energy is affected by the atmosphere and the Earth's surfaces. Since solar energy drives the Earth's climate, the J31 suite of measurements helps show how changing atmospheric and surface properties can change the climate.

The J31 flies with a complement of extremely specialized monitoring equipment, including the Ames Airborne Tracking Sun-photometer (AATS), the Solar Spectral Flux Radiometer (SSFR), the Research Scanning Polarimeter and the Cloud Absorption Radiometer (CAR) to name a few.

You can find a description of the aircraft used in the Milagro campaign here.

You might also be interested in:

Traveling Nitrogen Classroom Activity Kit

Check out our online store - minerals, fossils, books, activities, jewelry, and household items!...more

Aircraft Used in the MILAGRO Campaign

The MILAGRO researchers will use six different aircraft during the field campaign. Each plane will have different instrumentation onboard that will help scientists measure atmospheric conditions. They'll...more

Light extinction of particles

Not all particles are the same, many of them have different shape, size, and composition. Some of them reflect or scatter light, and others absorb it. Two instruments on the image, photometer and nephelometer,...more

What does Tecamac mean?

Measuring site T1 is in Tecámac. This is a little town close to Mexico City. The name Tecámac is a Náhuatl word, an ancient Mexico's language, spoken by Aztecs. In Náhuatl, Tetl or Tec means stone, camatl...more

Peroxides Measured at the T1 Site

Hello again: We are nearing the end of our field campaign in Mexico. It has been a real adventure, with friendly people, great food, and interesting science. I obtained some good hydrogen peroxide measurements...more

Cerro del Chiquihuite

Here is an example of how polluted the City is. This is a picture of "Cerro del Chiquihuite", which is situated around 5km (3miles) north from us. Chiquihuite is very close, indeed. However, we can barely...more

Ruins at Zempoala

On one of our down days, we took a little trip to a small town about 20 km from Veracruz. In the little town of Zempoala (also called Cempoala), there is a large area of partially restored ruins of ancient...more


This is a picture of the site where I am going to be measuring particles (I am in the room on the top of the building). We call it T0 because it is inside of the city and we can consider that the pollutants...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA