Amazon Redd Database

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The Amazon dynamic The Amazon dynamic database project fordatabase project for

Estimation of greenhouse gas Estimation of greenhouse gas emissions from landemissions from land--use change use change

on the Legal Amazon Regionon the Legal Amazon Region


The Amazon gross deforestation rate

• The Amazonian forest in Brazil (about 400 million hectares, within the region of Legal Amazonia (500 million hectares) has been monitoring with satellites for gross deforestation (conversion of the original forest cover into other land uses) on an annual basis since 1988.

• From 1988 to 2002, the interpretation was done manually on photographic prints on a scale of 1:250,000, with a digitizing table, and results sere presented as the extent and rate of gross deforestation for each one of the nine states that comprise Legal Amazonia region.


The Amazon gross deforestation rate

• From 2000 onward and for 1997, assisted automated digital interpretation was used, resulting in digital maps of gross deforestation, available from the National Institute for Space Research – INPE. In addition, images from 1975 and 1978 were used to produce maps of deforestation on a scale of 1:500.000.

• The satellites used were ERTS, the predecessor of LANDSAT, CBERS and on occasion the DMC with an attempt to obtain cloud-free coverage of the forest. The remaining could cover inevitably affects the more recent surveys, with the result that only an estimate of the extent and rate of deforestation for large regions can be obtained.


The dynamic Amazon database

• The successful implementation of a proprietary algorithm with a high-tech random component using fractals for the time-space interpolation of the existing data base allows the construction of a synthetic completely cloud-free coverage of deforestation for the period 1975 to 2008 (and further, as new data becomes available) on a 15-day basis, with full consideration of the seasonal variation of deforestation which, in turn, tends to occur within the relatively short dry season and is different for each part of the Legal Amazon region.



• The full georeferencing of the maps on the basis of the NASA-derived cartography of the region, and the coupling of the deforestation data base with the data sets recently made available by the geographic authority of Brazil (The Brazilian Institute for Geography and Statistics –IBGE), allowed the breakdown of the deforestation maps by municipality, vegetation type, conservation and indigenous areas and, as a matter of fact, by any other characteristic for which georeferenced digital maps may be available in the future, also with a proprietary technique specially developed for this purpose.



• As a partial example of the results, this presentation represent a sample of the potentialities of this method, for a period of 11 years out of the total of 33 years possible, over Peixoto de Azevedo county in northern of Mato Grosso. The evolution of deforestation is presented in red, the original forest is presented in green, non-forest (savannah) vegetation is shown in magenta and water bodies in blue. The difference in shade indicates the indigenous areas within the municipality bouderies.

1996 2007

• The data base preserves the full resolution of 60 meters used in the interpretation of the satellite images, resulting in a total of over 100 billion individual pixels for each date. For the about 800 dates (33 years with one image every 15 days), thus totaling 80 trillion individual pixels, or 80 terabytes of information, for a one-byte per pixel representation.



• The processing is fully developed! There are no remaining surprises possible, as demonstrated in the following animation. The full-scale construction of the complete database, however, requires the efficient implementation of the algorithms and massive data processing.

• The exploitation of the data base includes the use of the deforestation data in conjunction with available municipal level economic statistics in order to finally understand the driving mechanisms of deforestation.

• The coupling of the vegetation type with the available 3500 plots, 190,000 trees tree measurements allows for the construction of a full carbon map of Amazonia and consequent estimation of the greenhouse gas emissions from deforestation.

• The extension of the existing 1998-2004 maps of vegetation re-growth in the region will also allow for the estimation of net emissions of carbon dioxide from land-use change in Amazonia, a key input for global change studies, and also a required input for the development of public policies and private strategies for the area.


Dinâmica do desmatamento no Município de Peixoto de Azevedo – MT de 1996 a 2007




































































































































































































































































































































































































































































































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Amazon Redd Database

Documents

maps of deforestation

deforestation maps

rate of deforestation

deforestation data base

rate of gross deforestation

evolution of deforestation

gross deforestation

dynamic amazon database