Really?Six category 5 hurricanes in the Atlantic Ocean in 4 years is definitely unprecedented.
What is the expected recurrence of six in four years given historical rates of hurricanes?
Really?Six category 5 hurricanes in the Atlantic Ocean in 4 years is definitely unprecedented.
When is the last time the Atlantic Ocean has had 6 Category 5 hurricanes inside of 4 years?
But you just insist that this lies way outside what would be expected without doing a few simple sums.In 2005, there were four. Which had everyone concerned.
From 2003 to 2007 there were eight. Nothing like that before this millenium, though.
The trend, as you indicate, is strongly upward for severe storms, although there is very little increase in the number of storms.
From 2003 to 2007 there were eight. Nothing like that before this millenium, though.
How long have we had satellites that could take pictures of hurricanes at sea?Only recently? For how long have "they" been counting hurricanes that did not make landfall?
Unless you have satellite imagery for all the hurricanes in the Atlantic for the previous 2 millennium (1 AD to 2000 AD), then you have nothing to base your statement on.Nothing like that before this millenium, though.
I'm not too familiar with Asperger syndrome. Are people with Asperger's incapable of rational thought?
Quote Originally Posted by User Name View Post
Only recently? For how long have "they" been counting hurricanes that did not make landfall?
How long have we had satellites that could take pictures of hurricanes at sea?
Unless you have satellite imagery for all the hurricanes in the Atlantic for the previous 2 millennium (1 AD to 2000 AD), then you have nothing to base your statement on.
Infrared radiation absorption for water vapor and carbon dioxide is not even. Water vapor absorbs radiation mainly in the 18 to 30 micrometer band, allowing most of the rest to escape into space. But CO2 absorbs radiation in a different range: 8 to 18 micrometers. CO2 absorbs and reflects back to earth infrared radiation that water vapor would allow to pass through the atmosphere and into outer space.
It would be impossible to find any records of category 5 hurricanes before 1970, when the category system was developed.Since 1960.
Regarding the high number of category 5 storms recently:
From 2003 to 2007 there were eight. Nothing like that before this millenium, though.
Why Are Hurricanes Classified by Category? Robert Simpson ... become a meteorologist anddirector of theNational Hurricane Center from 1967 to 1973. However, today he’s best known for developing the Saffir-Simpson Hurricane Wind Scale that we still use to designate a storm as a Category one through five. Developed in the early 1970s, this widely used scale measures hurricane wind speed. A Category one starts out with a wind speed of 74 to 95 miles per hour. A category two ranges from 96 to 110 miles per hour; category three storms have winds at 111 to 129 miles per hour; category four extends from 130 to 156 miles per hour. Anything above 157 miles per hour is a Category five storm. |
So at best there are 50 years of data and in that time there have been 22 category 5s in the Atlantic.It would be impossible to find any records of category 5 hurricanes before 1970, when the category system was developed.
Why Are Hurricanes Classified by Category?
Robert Simpson ... become a meteorologist anddirector of theNational Hurricane Center from 1967 to 1973. However, today he’s best known for developing the Saffir-Simpson Hurricane Wind Scale that we still use to designate a storm as a Category one through five.
Developed in the early 1970s, this widely used scale measures hurricane wind speed. A Category one starts out with a wind speed of 74 to 95 miles per hour. A category two ranges from 96 to 110 miles per hour; category three storms have winds at 111 to 129 miles per hour; category four extends from 130 to 156 miles per hour. Anything above 157 miles per hour is a Category five storm.
It would be impossible to find any records of category 5 hurricanes before 1970, when the category system was developed.
Why Are Hurricanes Classified by Category?
Robert Simpson ... become a meteorologist anddirector of theNational Hurricane Center from 1967 to 1973. However, today he’s best known for developing the Saffir-Simpson Hurricane Wind Scale that we still use to designate a storm as a Category one through five.
Developed in the early 1970s, this widely used scale measures hurricane wind speed. A Category one starts out with a wind speed of 74 to 95 miles per hour. A category two ranges from 96 to 110 miles per hour; category three storms have winds at 111 to 129 miles per hour; category four extends from 130 to 156 miles per hour. Anything above 157 miles per hour is a Category five storm.
It would be impossible to find any records of category 5 hurricanes before 1970, when the category system was developed.
Would have been, if we didn't keep records of wind speed of hurricanes. So it's easy to apply the scale to hurricanes that were observed before the scale was implemented.
https://en.wikipedia.org/wiki/List_of_Category_5_Atlantic_hurricanes
Those of us who live in low-lying island nations are quite aware of the effects of AGW.
You mean New Zealand?!Those of us who live in low-lying island nations are quite aware of the effects of AGW.
You are now claiming that the technology used for measuring wind speed in 1933 and 1934 (both years had 2 category 5 hurricanes) is the same technology used to measure wind speed in our current decade?Would have been, if we didn't keep records of wind speed of hurricanes. So it's easy to apply the scale to hurricanes that were observed before the scale was implemented.
So you know that there is no effect caused by man that is not already explained by natural causes?Those of us who live in low-lying island nations are quite aware of the effects of AGW.
Functions of windmills in Holland Historically, windmills in Holland served many purposes. The most important probably was pumping water out of the lowlands and back into the rivers beyond the dikes so that the land could be farmed. In the fourteenth century, hollow-post mills were used to drive scoop wheels to drain the wetlands. There are over 1000 windmills in Holland. Some are still being used for drainage, such as one or two of the nineteen in Kinderdijk. The Molen de Otter, still in operation in Amsterdam, is also used for drainage. |