Current Conditions in Navarre

Thursday, December 15, 2011

Past, Present, and Future Climate Trends


The world's climate has never stayed the same, and it never will. There a few key forces for influencing change to a particular climate. The driving forces behind the geographical change of an area is Plate Tectonics. This phenomenon is due to the separating, shifting, colliding, and joining of the Earth's tectonic plates. As the earth has shuffled around the continents for billions of years, we will first look at the plate tectonics and the driving climate forces that Navarre experienced a 100M years ago.

Looking at the example map from a 100Ma the continents appear to be closely grouped together with the latitude roughly the same at about 30 degrees N, and also the Gulf Coast appears to be much more estuarine environment than it is now. This is probably due to higher sea levels at the time and minimal deposition from the Quaternary deposits brought down from the rivers that empty into the Gulf. These swampy regions would yield even higher humidity. I would assume to that at this time the Gulf Stream current would be even more prevalent in the area because of the all-around warmer global temperatures. I feel these types of conditions resulted in favoring many large hurricanes into the area.

Navarre's current geographic at 30 degrees N latitude, in the Southeastern United States falls under the Koppen-Geiger scale as a humid subtropical climate. The specific classification for the region is Cfa, which means warm temperate, fully humid, and hot summers.

Looking at Navarre's climate from a meso-scale two trends occur. First is its proximity to the Gulf of Mexico which constantly brings in humid air into the region from the warm water surface temperatures, especially in the summer. This saturated air spawns afternoon thunderstorms throughout the summer all along the Florida coast. Navarre receives just over 60 inches of precipitation every year, with the majority of the rain falling in July with an average of almost 8 inches, and April is the driest with about 4 inches of precipitation.


Navarre's landmass has a great threat of being underwater a hundred million years from now. With an average base elevation of less than 20 feet, it has a great risk to succumb to rising sea levels. It would become a total maritime climate as the sea surface temperatures in the shallowing Gulf of Mexico. Also the projection from a 100M Years in the future shows Navarre's location retreating to the south, it appears to be about 27 degrees N latitude, which would mean even more precipitation and higher temperatures.







The yellow arrow indicates Navarre's location a 100 million years ago.



















The yellow arrow indicates Navarre's location present day.








The yellow arrow indicates Navarre's location a 100 million years from now.

*Source: 

NOAA
National Hurricane Center
Pensacola News Journal
Weather.com, "Monthly Temp. Averages"

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