garnica: Time series images of Cerro de Garnica, Mexico (2000-2024)

In igapfill: Interface for Gap-Filling Earth Observation Datasets

Time series images of Cerro de Garnica, Mexico (2000-2024)

Description

Spatial subsets of the MOD13Q1 v061 NDVI product, in .tif format, covering Cerro de Garnica National Park (https://simec.conanp.gob.mx/ficha.php?anp=66&reg=11) located at Michoacan, Mexico. These subsets were collected from February 16, 2000 to December 16, 2024. The spatial and temporal resolutions of these images are 250m and 16 days, respectively.

Details

Due to the amount and characteristics of these images, they are stored in two files which we describe in what follows:

garnica_250m_16_days_NDVI.tif

This file contains 572 layers of Normalized Difference Vegetation Index (NDVI). By definition, NDVI = (NIR-RED)/(NIR+RED) where NIR and RED are the Near Infrared and Red spectral bands, respectively. Although by definition, the NDVI is a value belonging to the (-1, 1) interval, NASA distributes this product in integer (INT2S) data type; the scale parameter is 1e4.

More information about this MODIS product can be found here.

garnica_250m_16_days_pixel_reliability.tif

This file contains 572 pixel reliability layers. That is, in any of these layers, the value of any pixel is either -1 (Fill/No data), 0 (Good quality), 1 (Marginal data), 2 (Snow/Ice) or 3 (Cloudy).

Note

About the naming convention

Any layer in these files has the following naming convention:

MOD13Q1.AYYYYDDD.h08v07.061.YYYYDDDHHMMSS.250m_16_days_PRODUCT.tif

where:

• MOD13Q1 is the product short name

• AYYYYDDD is the Julian date of acquisition

• h08v07 is the tile identifier

• 061 is the product version

• YYYYDDDHHMMSS is the Julian date of production

• 250m is the spatial resolution

• 16_days is the temporal resolution

• PRODUCT is either NDVI or pixel_reliability

igapfill documentation built on June 8, 2025, 10:41 a.m.