TY  - JOUR
PY  - 2012//
TI  - Homogeneous record of Atlantic hurricane surge threat since 1923
JO  - Proceedings of the National Academy of Sciences of the United States of America
A1  - Grinsted, Aslak
A1  - Moore, John C.
A1  - Jevrejeva, Svetlana
SP  - 19601
EP  - 19605
VL  - 109
IS  - 48
N2  - Detection and attribution of past changes in cyclone activity are hampered by biased cyclone records due to changes in observational capabilities. Here we construct an independent record of Atlantic tropical cyclone activity on the basis of storm surge statistics from tide gauges. We demonstrate that the major events in our surge index record can be attributed to landfalling tropical cyclones; these events also correspond with the most economically damaging Atlantic cyclones. We find that warm years in general were more active in all cyclone size ranges than cold years. The largest cyclones are most affected by warmer conditions and we detect a statistically significant trend in the frequency of large surge events (roughly corresponding to tropical storm size) since 1923. In particular, we estimate that Katrina-magnitude events have been twice as frequent in warm years compared with cold years (P < 0.02).<p />  <p>Language: en</p>
LA  - en
SN  - 0027-8424
UR  - http://dx.doi.org/10.1073/pnas.1209542109
ID  - ref1
ER  -