COSMIC (Constellation Observing System for Meteorology, Ionosphere & Climate)

1.Which GPS applications most interest you? (Please check all that apply.)

Option Count Percent 1. High accuracy surveying or positioning for solid-Earth science 14 5.53% 2. Sensing of atmospheric water vapor for meteorology 72 28.46% 3. Sensing of atmospheric water vapor for hydrology 25 9.88% 4. Sensing of atmospheric water vapor for climatology 41 16.21% 5. Sensing of ionospheric total electron content 11 4.35% 6. Sensing of atmospheric gravity waves generated by earthquakes, volcanoes, tsunamis, tornadoes, sprites and jets, meteorites and space debris 19 7.51% 7. Upper atmospheric sensing using GPS occultations 29 11.46% 8. Lower atmospheric sensing using GPS occultations 42 16.6% Total 253 100% Median:   4.0 Minimum value:   1 Total responses:   87 Maximum value:   8

3.Have you used space-based or ground-based GPS data or retrieval algorithms?

Option Count Percent 1. Yes 35 33.65% 2. No 69 66.35% Total 104 100% Median:   2.0 Minimum value:   1 Total responses:   104 Maximum value:   2

4.Have you participated in any GPS-related science meeting(s)?

Option Count Percent 1. Yes 25 24.51% 2. No 77 75.49% Total 102 100% Median:   2.0 Minimum value:   1 Total responses:   102 Maximum value:   2

5.Are you currently participating in SuomiNet, a university-based national GPS network for real-time atmospheric sensing funded by the NSF (http://www.unidata.ucar.edu/suominet)?

Option Count Percent 1. Yes 12 11.76% 2. No 90 88.24% Total 102 100% Median:   2.0 Minimum value:   1 Total responses:   102 Maximum value:   2

6.Have you authored / co-authored any scientific publications that use ground-based or space-based GPS meteorology data or algorithms?

Option Count Percent 1. Yes 24 23.3% 2. No 79 76.7% Total 103 100% Median:   2.0 Minimum value:   1 Total responses:   103 Maximum value:   2

7.Are those publications based on data provided by UCAR?

Option Count Percent 1. Yes 11 16.67% 2. No 55 83.33% Total 66 100% Median:   2.0 Minimum value:   1 Total responses:   66 Maximum value:   2

8.Do you believe that UCAR, jointly with the University community, is the appropriate focal point toconduct high-risk satellite science projects?

Option Count Percent 1. Yes 64 73.56% 2. No 23 26.44% Total 87 100% Median:   1.0 Minimum value:   1 Total responses:   87 Maximum value:   2

9.Are you interested in using data from the COSMIC mission?

Option Count Percent 1. Yes 40 39.6% 2. No 15 14.85% 3. Maybe 46 45.54% Total 101 100% Median:   2.0 Minimum value:   1 Total responses:   101 Maximum value:   3

10.Should UCAR place more occultation sounding instruments on missions of opportunity in the future?

Option Count Percent 1. Yes 46 50.0% 2. No 8 8.7% 3. Don't know or not sure 38 41.3% Total 92 100% Median:   1.5 Minimum value:   1 Total responses:   92 Maximum value:   3

11.What are the most pressing needs in occultation science?

Option Count Percent 1. More data 23 14.38% 2. Reliable quality control 30 18.75% 3. Careful impact analysis 10 6.25% 4. Development of assimilation techniques for the data 40 25.0% 5. Solving the water vapor "ambiguity" problem 27 16.88% 6. Don't know or not sure 29 18.13% 7. Other 1 0.63% Total 160 100% Median:   4.0 Minimum value:   1 Total responses:   88 Maximum value:   7

13.What are the most pressing needs in ground-based GPS water vapor sensing?

Option Count Percent 1. More data 25 16.45% 2. Higher accuracy of water vapor retrieval 32 21.05% 3. Robustness of slant-path water vapor sensing 19 12.5% 4. Robustness of single frequency receiver for water vapor sensing 11 7.24% 5. Assimilation of ground-based GPS water vapor data for storm-scale NWP 33 21.71% 6. Don’t know or not sure 29 19.08% 7. Other (please specify): 3 1.97% Total 152 100% Median:   3.5 Minimum value:   1 Total responses:   83 Maximum value:   7