lunch at visitor center deck
dinner at La Parrillada Argentina
lunch at Radar rest.
session 4 (summary)
get together at visitor
center deck
1. Balmer-alpha and Balmer-beta Measurements: Thermospheric and Exospheric H
1.1 Description of Data: Identification inter-site discrepancies and
model
interactions
1.1.1 Arecibo H-alpha data (Kerr)
- Line profile distortions at Winter, Solar
Minimum conditions
- Magnetic storm enhancements of H-alpha brightness
- Secular variability
- H density determination
1.1.2 Pine Bluff and WHAM data (Nossal)
- Cascade excitation identification
- Magnetic storm variability
- Secular variability
- H density determination
1.2 Model Descriptions
1.2.1 Status of the modified Chamberlain model (Bishop)
- Criticisms and recommendations of [H] altitude
profile
derivations
- Usefulness to a new MSIS generation
- Integration of topside ionosphere data
1.2.2 Status of the Hodges Monte-Carlo model (no representative ?)
- Open discussion concerning use and applicability
- Usefulness to a new MSIS generation
1.3 Plans and Coordination
1.3.1 Identification of science objectives
1.3.3 TIMED coordination: Determining [H] in the lower thermosphere
(Bishop)
2. Metastable Helium Measurements: Thermospheric/exospheric He*, He, & He+
2.1 Arecibo Data Description: (Kerr)
2.1.1 Absolute sensitivity calibration
2.1.2 Line profile acquisition and analysis techniques
2.1.3 Discrepancy between GLOW and Link photoelectron model results
2.2 Status of the METAHE model (Bishop, Link)
2.2.1 Data comparisons, future requirements (Bishop)
2.2.2 Description and accessibility of the photoelectron model (Link)
2.3 Comparison of IRI vs. measured He+ density in the twilight (Link,
Bishop, Gonzalez)
2.4 Open forum: Applications and use of 1083 nm data
3. OI Measurements: Thermospheric O using 844.6 nm and 630.0 nm
measurements
3.1 Description of Nested Instrument Studies at Arecibo (Kerr)
3.1.1 Photometric vs. Interferometric measurements of 844.6 nm and
630.0 nm
3.1.2 Derivation of [O] above the F2 peak
3.1.3 Usefulness as a monitor of horizontal and vertical winds
3.2 Photoelectron model descriptions and comparison
3.2.1 Results of the GLOW model (Kerr)
3.2.2 Application of the FLIP model (Richards)
3.3 Plans and coordination
3.3.1 Interhemispheric measurements of 844.6: Coordination of
measurements at Cerro Tololo, Arecibo, Clemson, and Millstone
3.3.2 Model contributions and interactions
-discrepancies between numerical models and measurements
-MSIS and IRI issues
-nowcasting and forecasting issues
-January 6-7, 2000 modelling challenge
-High O+ densities druing summer solar minimum (D. Melendez)
-Modelling F-region coherent
Echoes (J. Rosado)
-POLITE update (Erickson)
-Arecibo (Gonzalez)
-Jicamarca, inclucing discussion regarding coulomb collisions(Farley, Chau, Sulzer, Gonzalez)
-MH-Kharkov(Erickson)
-Sonde
-EISCAT H+ velocities (Lovhaug)
-Svalbard update (Van Eyken)
-joint DMSP-ISR(Heelis, gonzalez)
-what sorts of campaigns
should we plan for the future
Other Topics
-radio and euv tomography and ISR validation/comparisons (Kamalabadi)
-O-O+ collsion cross section(Aponte and Gonzalez)
-issues with GPS TEC (and
ISR comparisons) (Gonzalez, Macpherson Erickson)