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Vegetation Index of Orinoco River Basin and Surroundings, Venezuela and Colombia

6.2N 68.6W

October 29th, 2010 Category: Rivers, Vegetation Index

Venezuela and Colombia - October 8th, 2010

This FAPAR image shows the vegetation index of Venezuela and parts of Colombia. Interestingly, the index is lowest (yellow in color) in the basin of the Orinoco River, which cuts diagonally across the image from southwest to northeast.

The index is highest (rusty red) to the west of the river basin, while that of the terrain to the east of the basin shows a generally good (green) index of photosynthetic activity.

The Orinoco River Empyting into the Gulf of Paría Between Venezuela and Trinidad – October 28th, 2009

10.3N 62W

October 28th, 2009 Category: Image of the day, Rivers

Venezuela - September 29th, 2009

Venezuela - September 29th, 2009

Muddy brown sediments pour forth from the mouth of the Orinoco River, in Venezuela, into the Delta Amacuro and the Gulf of Paría, reaching north-northwestward towards the island of Trinidad (upper left).

The Gulf of Paria is a 7800 km2 (3000 square mile) shallow inland sea between the island of Trinidad (Republic of Trinidad and Tobago) and the east coast of Venezuela. This sheltered body of water is considered to be one of the best natural harbours on the Atlantic coast of the Americas.

The Gulf of Paria is a brackish water body – wet season salinities are below 23 ppt (parts per thousand). The extensive mangroves along the Venezuelan and Trinidad coastlines are important wildlife habitat and probably play a crucial role in regional fisheries. The Gulf itself is also an important fishery.

Delta Amacuro, Venezuela: the Mouth of the Orinoco River

April 27th, 2009 Category: Rivers

Orinoco River, Venezuela - April 13th, 2009

Orinoco River, Venezuela - April 13th, 2009

The mouth of the Orinoco River, lower right, discharges dark brown and tan sediments of the coast of Venezuela, southeast of the archipelagic nation of Trinidad and Tobago, near the upper center.

The Orinoco is one of the longest rivers in South America at 2,140 km, (1,330 miles). Its drainage basin, sometimes called the Orinoquia, covers 880,000 km², with 76.3% in Venezuela with the rest in Colombia.

The Orinoco empties into the Gulf of Paría and the Atlantic Ocean at Delta Amacuro, a very large delta (some 22.500 km²,  200 km long and 370 km at its widest).

This wide delta branches off into hundreds of rivers and waterways that flow through 41,000 km² of swampy forests.

Vegetation Index of Northern Brazil and Amazon Rainforest

3.1S 60W

January 19th, 2011 Category: Vegetation Index

Brazil - January 1st, 2011

This FAPAR image shows the vegetation index of northern Brazil, extending southward across the Amazon Rainforest and the Amazonas Region in the full image. The mouth of the Orinoco River can be observed along the coast at the center top.

Green areas indicate good photosynthetic activity, while red areas indicate high activity and yellow areas, low activity. Most of the coastal region shows good to high activity, while the Amazon Rainforest to the south shows more uniformly high activity.

Vegetation Index of Venezuela and the Lesser Antilles – February 25th, 2010

9.9N 62.7W

February 25th, 2010 Category: Image of the day, Rivers, Vegetation Index

Venezuela - February 12th, 2010

Venezuela - February 12th, 2010

This FAPAR image shows the vegetation index of Venezuela and the islands of the Lesser Antilles. Venezuela lies within the Neotropic ecozone; large portions of the country were originally covered by moist broadleaf forests. One of seventeen megadiverse countries and among the top twenty countries in terms of endemism, some 38% of the over 21,000 plant species are unique to the country.

Here, the red areas south of the Orinoco River indicate a high index of photosynthetic activity. Green areas, such as those on the majority of the islands and around the Orinoco River Delta indicate good activity. Finally, yellow to white areas, such as those on the plains of the llanos near the coast, indicate low activity.

A plume of smoke and ash can be seen crossing the image near the upper edge. This is from the eruption of the Soufrière Hills Volcano in the Lesser Antilles. Please click here for the original article regarding this eruption.