Mapping spatial-temporal sediment dynamics of river-floodplains in the Amazon

This directory contains the following maps in GeoTIFF format:
open-water frequency, time-series of reflectance for each band (Red and NIR), and frequency of SSSC classes.

Fassoni-Andrade, A. C., & Paiva, R. C. D. (2019). Mapping spatial-temporal sediment dynamics of river-floodplains in the Amazon. Remote Sensing of Environment, 221, 94-107.

https://www.sciencedirect.com/science/article/abs/pii/S0034425718305005

Corresponding autor: [e-mail]

1) Data Description:

1.1) Spatial Representation Type: Raster
Format: TIFF
Columns and rows: 7661, 2405
Cell Size (X,Y): 0.002245, 0.002245 (~250m)

1.2) Extent (coordinate system):
Top: -0.025
Left: -67.28
Right: -50.081055
Botton: -5.424225

1.3) Spatial Reference Properties (GCS_WGS_1984.prj file):
Type: Geographic
Geographic Coordinate Reference: WGS 1984
Open Geospatial Consortium (OGC) Well Known Text (WKT):
GEOGCS["GCS_WGS_1984",
DATUM["D_WGS_1984",
SPHEROID["WGS_1984",6378137.0,298.257223563]],
PRIMEM["Greenwich",0.0],
UNIT["Degree",0.0174532925199433],
AUTHORITY["EPSG",4326]]

2) Data description for individual files:

2.1) File: open_water_frequency.tif
This map indicates for how long, during 15 years (2003-2017), each pixel in rivers and lakes of central Amazon basin remained as open-water at every four days.
Number of Bands: 1
Values between 0 and 100.
Pixel Type: floating point
Pixel Depth: 32 bit
No Data Value: 0

2.2) File: class_SSC_frequency.tif
This map represents a 15-year frequency (2003-2017) at which each pixel in rivers and lakes of central Amazon basin remains in one of the surface suspended sediments concentration classes (SSSC): high, moderate, and low.
The open-water frequency map must be considered to interpret the sediments temporal dynamics in the class frequency map. For example, a pixel in the floodplain lake with frequency of 10, 30, and 20% in SSSC classes low, medium and high respectively, remains 40% of the time as no open-water.
Number of Bands: 3
band 1: low SSSC class; band 2: Moderate SSSC class; band 3: High SSSC class
Composition of bands for best visualization: R(3)G(2)B(1) without contrast
Values between 0 and 100.
Pixel Type: double precision
Pixel Depth: 64 bit
No Data Value: 0

2.3) File: time_series_nir.tif
This map represents the climatology time series of infrared (nir) reflectance in period of four-days in rivers and lakes of central Amazon basin between 2003 and 2017 (15 years).
Number of Bands: 92 (each band represent a date that is identified in dates.txt file)
Values between 0 and 10000.
Pixel Type: floating point
Pixel Depth: 32 bit
No Data Value: 0

2.4) File: time_series_red.tif
This map represents the climatology time series of red reflectance in period of four-days in rivers and lakes of central Amazon basin between 2003 and 2017 (15 years).
Number of Bands: 92 (each band represent a date that is identified in dates.txt file)
Values between 0 and 10000.
Pixel Type: floating point
Pixel Depth: 32 bit
No Data Value: 0