Climate Metrics over the Amazon Basin from WORLDCLIM
Summary:
Climate data layers over the Amazon basin are extracted from the bioclimatic data
layers of WorldClim 30 arc-sec(~ 1km ) tiles, mosaicked, and registered to the rest
of data layers over the Amazon basin.
The WorldClim interpolated climate layers were made using:
* Major climate databases compiled by the Global Historical Climatology Network
(GHCN), the FAO, the WMO, the International Center for Tropical Agriculture (CIAT),
R-HYdronet, and a number of additional minor databases for Australia, New Zealand,
the Nordic European Countries, Ecuador, Peru, Bolivia, among others.
* The SRTM 30 arc-minute elevation database
* The ANUSPLIN software.
Bioclimatic variables or climate metrics are derived from the monthly temperature
and rainfall values in order to generate more biologically meaningful variables.
These are often used in ecological niche modeling (e.g., BIOCLIM, GARP). The bioclimatic
variables represent annual trends (e.g., mean annual temperature, annual precipitation)
seasonality (e.g., annual range in temperature and precipitation) and extreme or
limiting environmental factors (e.g., temperature of the coldest and warmest month,
and precipitation of the wet and dry quarters). A quarter is a period of three months
(1/4 of the year).
Temperature Metrics:
BIO1 = Annual Mean Temperature
BIO2 = Mean Diurnal Range (Mean of monthly (max temp - min temp))
BIO3 = Isothermality (P2/P7) (* 100)
BIO4 = Temperature Seasonality (standard deviation *100)
BIO5 = Max Temperature of Warmest Month
BIO6 = Min Temperature of Coldest Month
BIO7 = Temperature Annual Range (P5-P6)
BIO8 = Mean Temperature of Wettest Quarter
BIO9 = Mean Temperature of Driest Quarter
BIO10 = Mean Temperature of Warmest Quarter
BIO11 = Mean Temperature of Coldest Quarter
Precipitation layers:
BIO12 = Annual Precipitation
BIO13 = Precipitation of Wettest Month
BIO14 = Precipitation of Driest Month
BIO15 = Precipitation Seasonality (Coefficient of Variation)
BIO16 = Precipitation of Wettest Quarter
BIO17 = Precipitation of Driest Quarter
BIO18 = Precipitation of Warmest Quarter
BIO19 = Precipitation of Coldest Quarter
For more information on the methodology and the spatial distribution of the climate
stations, go to: http://biogeo.berkeley.edu/worldclim/methods.htm.
Data Citation:
Cite this data set as follows:
climate data layers: temperature and precipitation metrics.
http://biogeo.berkeley.edu/worldclim/methods.htm
Hijmans, R.J., S. Cameron, J. Parra, 2004. WorldClim, version 1.2. A square kilometer resolution database of global terrestrial surface climate. Available at http://biogeo.berkeley.edu/
More information can be found at: http://www-radar.jpl.nasa.gov/carbon/
Table of Contents:
1. Data Set Overview:
Project: LBA-ECO
LBA Science Component: Land Use and Land Cover
Team ID: LC-15 (Saatchi / Alvala)
The investigators were
Saatchi, Dr. Sassan
. You may contact Saatchi, Dr. Sassan (Saatchi@congo.jpl.nasa.gov)
***Please input an overview of the data set.
2. Data Characteristics:
***Please input data characteristics. This section should contain of the spatial and temporal extent of the data, the organization of the data files, data file formats, variable descriptions, and a sample data record, if applicable.
Site boundaries: (All latitude and longitude given in degrees and fractions)
| Site (Region) |
Westernmost Longitude |
Easternmost Longitude |
Northernmost Latitude |
Southernmost Latitude |
Geodetic Datum |
| Amazon Basin (Amazon Basin)
| -82.72083 |
|
13.8583 |
|
World Geodetic System, 1984 (WGS-84) |
Time period:- The data set covers the period 2000/01/01 to 2000/12/30.
3. Data Application and Derivation:
***Please input data application and derivation. This section should assist users in applying the data and understanding the data at both theoretical and detailed technical levels.
4. Quality Assessment:
***Please input quality assessment. This section should contain descriptions of data uncertainties, known problems, and descriptions of quality assessments that have been performed on this data by the provider and the Data Center.
5. Data Acquisition Materials and Methods:
***Please input data acquisition materials and methods. This section should describe the source or platform, sensors, and their use for aerial or space platforms. For field experiments, it should provide similar relevant information.
6. Data Access:
This data is available through the Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC) or the EOS Data Gateway.
Data Archive Center:
Contact for Data Center Access Information:
E-mail: uso@daac.ornl.gov
Telephone: +1 (865) 241-3952
FAX: +1 (865) 574-4665
Requested data can be provided electronically on the ORNL DAAC's
anonymous FTP site or on various media including, CD-ROMs, 8-MM tapes, or diskettes.
N/A
N/A
7. References:
N/A
***Please input references. Provide references to Satellite/Instrument/Data Processing Documentation, Journal Articles and Study Reports, and Data Center/Database Management System Usage Documentation.
Use the format used in leading science Journals. If these documents exist online, refer to Bibliography Styles from the University of Illinois Writers' Workshop On-Line Handbook. URL: http://www.english.uiuc.edu/cws/wworkshop/bibliostyles.htm.
|
