Disclaimer: This material is being kept online for historical purposes. Though accurate at the time of publication, it is no longer being updated. The page may contain broken links or outdated information, and parts may not function in current web browsers. Visit https://espo.nasa.gov for information about our current projects.

 

Associated content: 

Examination of aerosol indirect effects during cirrus cloud evolution

Maciel, F. V., M. Diao, and R. Patnaude (2023), Examination of aerosol indirect effects during cirrus cloud evolution, Atmos. Chem. Phys., 23, 1103-1129, doi:10.5194/acp-23-1103-2023.

Deep Convective Cloud Top Altitudes at High Temporal and Spatial Resolution

UAS Chromatograph for Atmospheric Trace Species (UCATS) – a versatile instrument for trace gas measurements on airborne platforms

Fast Cloud Droplet Probe

SPEC has developed a Fast Cloud Droplet Probe (FCDP) with state-of-the-art electro-optics and electronics that utilizes forward scattering to determine cloud droplet distributions and concentrations in the range of 1.5 to 50 microns.  Though designed for cloud droplet measurements, the probe has also shown reliable measurements in ice clouds.  The new electronics include a temperature controlled fiber-coupled laser, FSSP-300 optics with pinhole limiting depth of field (Lance et al. 2010), a field programmable gate array (FPGA), 40 MHz analog-to-digital-converter (ADC) sampling, custom amplifiers, a very small and low power Linux based 400 MHz processor and a 16-Gigabyte flash drive that stores data at the probe.

Instrument Type: 
Point(s) of Contact: 

Laser Induced Fluorescence – Sulfur Dioxide

The LIF-SO2 instrument detects sulfur dioxide at the single-part per trillion (ppt) level using red-shifted laser-induced fluorescence. It has operated on the WB-57 and Global Hawk aircraft in the UT/LS, as well as on the DC-8. Sulfur Dioxide is an important precursor for aerosols including nucleation of new particles globally and can be greatly enhanced in the stratosphere following explosive volcanic eruptions. An important implication of the Asian Monsoon is transport of aerosol precursors including SO2 into the lower stratosphere.

Instrument Type: 
Measurements: 
Point(s) of Contact: 

Direct impacts of waves on tropical cold point tropopause temperature

Kim, J., and M. J. Alexander (2015), Direct impacts of waves on tropical cold point tropopause temperature, Geophys. Res. Lett., 42, 1584-1592, doi:10.1002/2014GL062737.

Thumbnail for ATTREX Instrumentation

Thumbnail for ATTREX Instrumentation

Thumbnail for ATTREX Chapter 6 video

Thumbnail for ATTREX Chapter 6 video

Thumbnail for ATTREX Chapter 5 video

Thumbnail for ATTREX Chapter 5 video

Thumbnail for ATTREX Chapter 4 video

Thumbnail for ATTREX Chapter 4 video

Pages

Subscribe to RSS - ATTREX