High Resolution Dynamics Limb Sounder
The High Resolution Dynamics Limb Sounder (HIRDLS) instrument provides measurements of temperature, trace constituents and aerosols from the middle troposphere to the mesosphere, with a key attribute of high vertical resolution. HIRDLS will also provide key measurements of atmospheric aerosols and cirrus clouds, as well as unique measurements of sub-visible cirrus.
Ozone in the UTLS
In the UTLS region, the region with a steep gradient in potential vorticity around the thermal tropopause forms a strong barrier to mixing from November until May in the northern hemisphere, i.e. during northern winter and transition seasons. A similar indication of winter barriers can be seen in the southern hemisphere. This is borne out by plots of ozone mixing ratios on equivalent latitudes as a function of time. There is very little change during the winter periods in the vicinity of the barrier. These results are in good agreement with results of Haynes and Shuckburg (2000).
Read full article...
Tropospheric Intrusion Event 2,3,4 April 2006
These plots trace the eastward motion of the low ozone parcel, as well as its deformation.
HIRDLS News
Data version V004 (HIRDLS ID 2.04.19) is now being released. This release adds three new data products (F11, F12 and aerosol extinction) and significantly enhances those currently available (T, O3, HNO3, cloud tops).
A HIRDLS Science Team meeting was held at NCAR on July 13-15, 2009. Presentations from this meeting are available here.
HIRDLS Data
Data version V004 (HIRDLS ID 2.04.19) is available from the NASA Goddard Space Flight Center Earth Sciences (GES) Data and Information Services Center (DISC) .
Documentation
Data Description and Quality, Version 004 pdf.
Gallery
To view a collection of HIRDLS images, click here .
Mailing List
To subscribe to the HIRDLS e-mailing list, please visit this page. Note that we allow only HIRDLS team members to post to the mailing list.