HR: 1340h
AN: P43A-0907    [Abstracts]
TI: Mars 2003: Cooperative Observation Networks
AU: * Nakakushi, T
EM: kushio@gaia.h.kyoto-u.ac.jp
AF: Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501 Japan
AU: Adachi, M
EM: jh3svw@yahoo.co.jp
AF: Kansai branch of the Association of Lunar and Planetary Observers of Japan, 4-8-11 Hon-Katata, Otsu, Shiga, 520-0242 Japan
AU: Iga, Y
EM: iga@bellcity.ne.jp
AF: Kansai branch of the Association of Lunar and Planetary Observers of Japan, 4-8-11 Hon-Katata, Otsu, Shiga, 520-0242 Japan
AU: Tokimasa, N
EM: tokimasa@nhao.go.jp
AF: Nishi-Harima Astronomical Observatory, Sayo-cho, Hyogo, 679-5313 Japan
AU: Narumi, Y
EM: ynarumi@ktmail.ktokai-u.ac.jp
AF: Kyushu-Tokai University, 9-1-1, Toroku, Kumamoto, Kumamoto, 862-8652 Japan
AB: We have two networks for cooperative Mars observations in Japan, which link up professional researchers and amateurs: Nishi-Harima Astronomical Observatory Mars Cooperative Observation and Association of Lunar and Planetary Observers in Japan. Presented is a summary of more than 4000 images collected by the two networks during the first half of the last apparition from 18 October, 2002 through 22 June, 2004, corresponding to the period of $L_s =$ 83$^{\mbox{\tiny $\circ$}}$--51$^{\mbox{\tiny $\circ$}}$. In this period many interesting phenomena were observed, including three dust storms and a precursor, South Polar Cap recession with dark markings and some bright spots, water ice clouds, orographic clouds, polar hoods, and new surface markings.
DE: 5445 Meteorology (3346)
DE: 5494 Instruments and techniques
DE: 6225 Mars
SC: Planetary Sciences [P]
MN: 2004 AGU Fall Meeting