1. Question 1: How well do you think COSMIC group has been done so
far in COSMIC scientific applications and reaching out to NCAR
Science divisions and universities to promote COSMIC research?
Speaking from my own perspective (boundary-layer research)
Positives:
Great data set with unique characteristics to address fundamental
research problems
Unique expertise in understanding the underlying physics, as well
as quality and idiosyncrasies of the data
Negative:
First priority is dealing with operational issues; scientific applications
on a “time available” basis

2. Question 2: What more can the UCAR COSMIC team do to
enhance interaction with universities and NCAR and
Taiwan scientists ?
Speaking from my own perspective (boundary-layer research)
Be available to discuss data quality and limitation issues, and
work with scientists (as coauthors) who can use the data to
address their specific research problems
Advertise results through publications and presentations at
meetings, symposia, workshops, etc. – especially at specialty
conferences such as the AMS Boundary Layer and Turbulence
Symposium
Host a summer ASP colloquium – an opportunity to entrain
graduate students
Obtain an ASP (or other) postdoctoral fellow to work with NCAR
scientists

3. Develop joint proposal or studies with other NCAR science divisions
Q3. What are important scientific questions that RO data may potentially contribute that COSMIC group can work with NCAR/Taiwan scientists on? Whom shall we contact ?
Develop joint proposal or studies with other NCAR science divisions
Speaking from my own perspective (boundary-layer research). These questions
are of interest to the Boundary Layer and Turbulence Group of MMM.
What is the depth of the PBL? RO data can estimate PBL depth over
the oceans in many areas of the globe, but especially in regions of
large-scale subsidence. This is important for climate model verification
and studying PBL processes; PBL depth is a delicate balance between
entrainment and subsidence. Refractivity profiles often identify the PBL top.
RO fluctuation data provides information on turbulence layers. Can this
data be used to identify PBL top? Estimate the turbulence intensity? The
depth and horizontal extent of turbulence layers? Entrainment across the PBL
top (or the turbulence layer interfaces)? Combined synergistically with mean
refractivity profiles?

4. Mean PBL depth for different times of day (top) and times of
year (bottom) from COSMIC satellite measurements versus
latitude between 17.5°S and 22.5ºS 4
COSMIC retreat
4/5/2019 4

5. Frequency of ABL occurrence per season over latitude/longitude bins

6. Mean ABL depth per season over latitude longitude bin
Mean ABL depth per season over latitude longitude bin. White areas indicate the count is less than 5.