- journal_title：Geology
- Contributor：Howard A. Zebker ; Paul Rosen ; Scott Hensley ; Peter J. Mouginis-Mark
- Publisher：Geological Society of America
- Date：1996-
- Format：text/html
- Language：en
- Identifier：10.1130/0091-7613(1996)024<0495:AOALFO>2.3.CO;2
- journal_abbrev：Geology
- issn：0091-7613
- volume：24
- issue：6
- firstpage：495
Precise eruption rates of active pahoehoe lava flows on Kilauea volcano, Hawaii, have been determined using spaceborne radar data acquired by the Space Shuttle Imaging Radar-C (SIR-C). A coastal site downslope from the Pu'u O'o vent was imaged once per day, on each of the four days of October 7–10, 1994. Day-to-day decorrelation due to resurfacing was determined by interferometric combination of the data at 15 m resolution over a wide area. On successive days, new lava resurfaced 335700 m2, 368775 m2, and 356625 m2. Assuming an average pahoehoe flow thickness of 50 cm, a mean effusion rate for this period is approximately 2 m3/s. The radar observations show persistent surface activity at each site, rather than downslope migration of coherent lava flows.