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Posts tagged North Carolina

Andrea (01L) Merges With Frontal Zone, USA

33.3N 80.6W

June 8th, 2013 Category: Tropical Storms MODISTerra

Tropical Storm Andrea (01L) – June 8th, 2013

Enhanced image

Track of Tropical Storm Andrea (01L) - June 6th, 2013 © Univ. of Wisconsin

Track of TC 01L

By 2140 UTC on June 6, Tropical Storm Andrea (01L) had made landfall in Dixie County, Florida about 10 miles (16 km) south of Steinhatchee.

After moving inland, the storm initially weakened quickly, with winds decreasing to 45 mph (75 km/h) by early on June 7. The National Hurricane Center then noted that extratropical transition was likely within 24 hours and “could occur sooner if the convective structure does not improve.”

By later on June 7, most of the convection became displaced to the northwest due to dry air. Around that time, the storm began accelerating northeastward at 26 mph (42 km/h) due to an approaching mid-latitude trough.

Andrea then became indistinguishable with a frontal zone over North Carolina. Based on surface observations and doppler radar, the National Hurricane Center declared the storm extratropical at 2100 UTC on June 7.

Sunglint on Bays of USA’s East Coast

35.3N 75.8W

May 18th, 2013 Category: Climate Change

USA – May 10th, 2013

Sunglint reflecting off the Atlantic Ocean highlights the contours of bays along the East Coast of the United States of America: Chesapeake Bay, Albemarle Sound and Pamlico Sound (from top to bottom).

The Albemarle-Pamlico Estuarine System is one of the largest and most important in the United States. Covering approximately 7,530 square kilometers (2,900 square miles), the waters of the system comprise the second largest estuarine system on the East Coast of the United States, exceeded in area by only the Chesapeake Bay.

The Albemarle-Pamlico Estuarine System is comprised of an extensive complex of creeks, rivers, swamps, marshes, and open water sounds dominating northeastern North Carolina. Tributaries originating in the mountains and piedmont serve as conduits from a major portion of North Carolina and southern Virginia. Albemarle Sound is the
drowned portion of the Roanoke River and its extensive floodplain.

The Coastal Plain of the Albemarle-Pamlico Region is widely recognized as among the USA’s most vulnerable landscapes to relative sea level rise and associated climate phenomena. The indicators “ambient air temperature,” “storm frequency and intensity,” and “relative sea level rise” all offer insights into the influence of climate stressors on the Albemarle-Pamlico ecosystem (click here for more information).

Vegetation Index of Virginia and North Carolina, USA

36.4N 76.9W

April 4th, 2013 Category: Vegetation Index

USA – April 2nd, 2013

This image focuses on the states of Virginia and North Carolina, USA, showing the vegetation index in early Spring. The present-day climate of Virginia is generally classified as humid subtropical, but within-state variation of temperatures, precipitation, and length of growing season is dramatic. Much of the temperature gradient is related to elevation and distance from the coast, with oceanic influences greatly moderating the climate of near-coastal areas.

The relatively warm climate of eastern and southeastern Virginia is closely correlated with a concentration of southern plant species, some of which reach their northern range limits in the state. It is important to note that the contemporary vegetation of Virginia is not static and has developed only recently on the geological time scale. Ongoing global climate change and the contemporary loss of barriers to the worldwide migration of plants and other organisms will do doubt continue to generate shifts in vegetation distribution and composition across the state (click here for more information).

Climate Change and North Carolina’s Sounds and Barrier Islands

35.3N 75.8W

February 6th, 2013 Category: Climate Change

USA – January 22nd, 2013

The sea that sculpted North Carolina’s coast, from its arc of barrier islands (visible beyond Pamlico Sound, to the right), to the vast, nurturing sounds, is reshaping it once again. Water is rising three times faster on the N.C. coast than it did a century ago as warming oceans expand and land ice melts, recent research has found. It’s the beginning of what a N.C. science panel expects will be a 1-meter increase by 2100.

Rising sea level is the clearest signal of climate change in North Carolina. Few places in the United States stand to be more transformed. About 2,000 square miles of the state’s low, flat coast is 1 meter (about 39 inches) or less above water. At risk are more than 30,500 homes and other buildings.

This won’t be the work of rising water alone, but of quirks in North Carolina’s coastal topography. The flat ground means even a small increase in water level will spread far inland. The coastal plain is also sinking, the geologic legacy of the last Ice Age. Sea-level rise also magnifies two other powerful forces: erosion that gouges the coastline and the pounding of nor’easters and tropical storms (click here to read more).

USA from Pamlico Sound to Appalachian Mountains

35.3N 75.8W

November 12th, 2012 Category: Mountains, Sediments

USA – November 10th, 2012

Green sediments create swirled patterns in Pamlico Sound, North Carolina, and along the Outer Banks, the row of low, sandy barrier islands that separate the sound from the Atlantic Ocean. At 129 km (80 mi) long and 24 to 48 km (15 to 30 miles) wide, it is the largest lagoon along the east coast of the USA. Pamlico Sound is linked on the north with Albemarle Sound through Roanoke Sound and Croatan Sound (passages).

Also of interest in this image are the Appalachian Mountains, visible upon opening the full version. The Appalachian chain is a barrier to east-west travel as it forms a series of alternating ridgelines and valleys oriented in opposition to any road running east-west. These alternating ridges and valleys are easily discernible as alternating brown and green lines.