Summary:

This data set contains an ArcGIS ArcInfo grid (provided in e00 and grid ascii format) which provides the number of hot spots detected across the legal Amazon Basin at 5 km resolution by the AVHRR (Advanced Very High Resolution Radiometer) on NOAA 12, 14, 15, 16, 17, and 18 satellites for the entirety of 2001 (January 1- December 31).Only hot spots detected at night are included. This data is useful for modeling fire events and evaluating human impacts on the Amazon Basin using fire as an indicator of anthropogenic disturbance (Arima et al., 2007).

Figure 1. Location of 5-km cells where fires were detected. The number of fires detected is indicated by cell color.

Data Citation:

Cite this data set as follows:

Arima, E. 2008. LBA-ECO LC-24 AVHRR Derived Fire Occurrence, 5-km Resolution, Amazonia: 2001. Data set. Available on-line [http://daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. doi:10.3334/ORNLDAAC/882.

Implementation of the LBA Data and Publication Policy by Data Users:

The LBA Data and Publication Policy [http://daac.ornl.gov/LBA/lba_data_policy.html] is in effect for a period of five (5) years from the date of archiving and should be followed by data users who have obtained LBA data sets from the ORNL DAAC. Users who download LBA data in the five years after data have been archived must contact the investigators who collected the data, per provisions 6 and 7 in the Policy.

This data set was archived in July of 2008. Users who download the data betweenJuly of 2008 and June 2013 must comply with the LBA Data and Publication Policy.

Data users should use the Investigator contact information in this document to communicate with the data provider. Alternatively, the LBA Web Site [http://lba.inpa.gov.br/lba/] in Brazil will have current contact information.

Data users should use the Data Set Citation and other applicable references provided in this document to acknowledge use of the data.

Table of Contents:

• 1 Data Set Overview
• 2 Data Characteristics
• 3 Applications and Derivation
• 4 Quality Assessment
• 5 Acquisition Materials and Methods
• 6 Data Access
• 7 References

1. Data Set Overview:

Project: LBA (Large-Scale Biosphere-Atmosphere Experiment in the Amazon)

Activity: LBA-ECO

LBA Science Component: Land Use and Land Cover

Team ID: LC-24 (Walker / Reis)

The investigators were Walker, Robert T.; Reis, Eustaquio J; Arima, Eugenio; Bohrer, Claudio Belmonte de Athayde; Caldas, Marcellus Marques; Perz, Stephen G; Pfaff, Alexander; Qi, Jiaguo and Souza Jr., Carlos Moreira de . You may contact Walker, Robert T. (rwalker@msu.edu)

LBA Data Set Inventory ID: LC24_Basin_Scale_Hot_Pixels_2001

Number of hot spots detected across the legal Amazon Basin at 5- km resolution by the AVHRR (Advanced Very High Resolution Radiometer) on NOAA 12, 14, 15, 16, 17, and 18 satellites for the entirety of 2001 (January 1-December 31). Only hot spots detected at night are included.

Related Data Set:

LBA-ECO LC-23 Characterization of Vegetation Fire Dynamics for Brazil 2001-2003

2. Data Characteristics:

Data File Description:

ESRI 5 km grid provided in ArcGIS ArcInfo export format as count01.e00 and in gridascii format as count01.asc. The geospatial information associated with this grid is as follows:

Cell size = 5000
Number of Rows = 518
Number of Columns = 662
Data Type = Integer
Number of Values = 34
Number of data (bytes) = 8
Minimun value = 1
Maximum Value = 41
Mean Value = 2.900
Standard Deviation = 2.706

Boundary Information:
Xmin = -2203688.419
Xmax = 1106311.581
Ymin = -2006146.120
YMax = 583853.880

Coordinate System Description: Projection = Sinusoidal
Units = Meters
Spheroid = Defined
Major Axis = 637100.00000
Minor Axis = 637100.00000
Radius of the sphere of reference = 6371000.000
Longitude of central meridian = -54 0 0.000
False easing (meters) = 0.00000
False northing (meters) = 0.00000

Table 1. The number of fire occurrences detected per 5-km cell ranged from 1 to 41. Column 2 shows the total number of cells with a respective number of fire occurrences. Please note that cells/classes for which there were no fire occurrences (zero) are not included in the grid file.

Site boundaries: (All latitude and longitude given in degrees and fractions)

Time period:

• The data set covers the period 2001/01/01 to 2001/12/31.
• Temporal Resolution: Fire events at night

Platform/Sensor/Parameters measured include:

• NOAA SATELLITES / AVHRR (ADVANCED VERY HIGH RESOLUTION RADIOMETER) / FIRE OCCURRENCE

3. Data Application and Derivation:

This data is useful for modeling fire events and evaluating human impacts on the Amazon Basin using fire as an indicator of anthropogenic disturbance (Arima et al., 2007).

4. Quality Assessment:

Not available.

5. Data Acquisition Materials and Methods:

Original point dataset downloaded from INPE's website by Rodney Salomao (IMAZON) and processed by E. Arima (arima@hws.edu). Only hot spots detected at night were included. Created by using simple neighborhood statistics (count of events, setting the window frame to rectangular, width = 1 cell, height = 1 cell, units = 1 cell).

6. Data Access:

This data is available through the Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC) .

Data Archive Center:

Contact for Data Center Access Information:

E-mail: uso@daac.ornl.gov
Telephone: +1 (865) 241-3952

7. References

Arima, E.Y., C.S. Simmons, R. Walker, and M.A. Cochrane. 2007. Fire in the Brazilian Amazon: A Spatially Explicit Model for Policy Impact Analysis. Journal of Regional Science 47(3).

Related Publications

Arima, E.Y., C.S. Simmons, R. Walker, and M.A. Cochrane. 2007. Fire in the Brazilian Amazon: A Spatially Explicit Model for Policy Impact Analysis. Journal of Regional Science 47(3).