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Aurora/airglow imaging observations in the polar cap region

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Presentation on theme: "Aurora/airglow imaging observations in the polar cap region"— Presentation transcript:

1 Aurora/airglow imaging observations in the polar cap region
K. Shiokawa Solar-Terresrial Environment Laboratory, Nagoya Univ. K. Hosokawa The University of Electro-communications

2 Optical Mesosphere Thermosphere Imagers (OMTI)
Athabasca (OMTI) 70o 80o Resolute (OMTI/UEC) Eureka (planned in 2015, OMTI/UEC) Tromsoe (OMTI) MLAT/MLON map New camera at Eureka, near the magnetic north pole

3 Eureka, Canada (planned in 2015)
Site used by Canadian university and government joint project (PEARL)

4 Camera Operation Resolute Bay (RSB) : (74.7N, 265.1E) All-Sky Imager #6 (Jan.9, 2005-) OI (557.7nm, 30s), OI (630.0nm, 30s), OH-bands(2s), Na (589.3nm, 30s) : every 2min OI (777.4nm, 45s) : every 20 min Collaborators Resolute Bay (RSB): John D. Kelly (SRI International) Eric Donovan (University of Calgary) Eureka (EUR): William Ward (University of New Brunswick)

5 Convection velocity estimated from the polar-cap patch drift
Hosokawa et al. (GRL, 2006) Adding Eureka and Eric’s REGO sites will allow doing this in a much wider scale.

6 backup

7 All-sky Airglow/Aurora Imager
with Cooled-CCD Camera sensitive to a few Rayleighs

8 These camera are operated when the moon is under the horizon and the sun is below -12 degree under the horizon.

9 Athabasca (OMTI) Resolute (OMTI/UEC) Eureka
(planned in 2015, OMTI/UEC) Tromsoe (OMTI) MLAT/MLON map

10 Camera Operation Resolute Bay (RSB) : (74.7N, 265.1E) All-Sky Imager #6 (Jan.9, 2005-) OI (557.7nm, 30s), OI (630.0nm, 30s), OH-bands(2s), Na (589.3nm, 30s) : every 2min OI (777.4nm, 45s) : every 20 min Collaborators Resolute Bay (RSB): John D. Kelly (SRI International) Eric Donovan (University of Calgary) Eureka (EUR): William Ward (University of New Brunswick)

11 Resolute Bay, Canada all-sky imager

12 polar cap patch drift

13 Convection velocity estimated from the polar-cap patch drift
Hosokawa et al. (GRL, 2006)

14 Good correlation with IMF Bz and By Bz and convection velocity By and convection angle Hosokawa et al. (GRL, 2006)

15 Eureka, Canada (planned in 2015)

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