Sentences with phrase «term cyclone activity»
Methods: While a few studies in the past investigated the influence of climate phenomena such as the El Niño Southern Oscillation and the Madden - Julian Oscillation on the inter-annual variability of tropical cyclones in the post-monsoon Bay of Bengal, changes in long - term cyclone activity are less well understood.
https://www.pnnl.gov/ Not exact matches
A tropical cyclone is the generic term for a non-frontal synoptic scale low - pressure system over tropical or sub-tropical waters with organized convection (i.e. thunderstorm activity) and definite cyclonic surface wind circulation (Holland 1993).
They add that this slow pace currently makes the trend undetectable due to inadequate long - term records and the considerable variance in cyclone activity from season to season.
NOAA also forecasts a high hurricane activity for the remainder of the season, and time will show if this season will match the 2004 in terms of number of tropical cyclones.
«This variability makes detecting any long - term trends in tropical cyclone activity difficult,» according to the WMO statement.
It adds this substantial cautionary note, however: that «multi-decadal variability and the quality of the tropical cyclone records prior to routine satellite observations in about 1970 complicate the detection of long - term trends in tropical cyclone activity.»
Multi-decadal variability and the quality of the tropical cyclone records prior to routine satellite observations in about 1970 complicate the detection of long - term trends in tropical cyclone activity.
As the IPCC special report on extreme events put it «There is low confidence in any observed long - term (i.e., 40 years or more) increases in tropical cyclone activity (i.e., intensity, frequency, duration), after accounting for past changes in observing capabilities.»
Whether they looked at intensity, frequency or duration, they couldn't find any long - term increase in tropical cyclone activity:
What studies are being alluded to that have shown a connection between observed warming trends on the earth and long - term trends in tropical cyclone activity?
Many other measures or terms exist, such as «named storm days», «hurricane days», «intense hurricanes», «net tropical cyclone activity», and so on.
Apart from wreaking havoc and killing a lot of people, Bopha's main effect was to nudge annual cyclone activity back up towards something approaching the long - term norms.
Long - term trends: tropical cyclone activity low in recent years, perhaps edging upwards again.
In terms of historical tropical cyclone activity, a 2010 WMO assessment of tropical cyclones and climate change concluded that «it remains uncertain whether past changes in tropical cyclone activity have exceeded the variability expected from natural causes.»