time series

Geo-tecnologías y sensado remoto para aplicaciones en Salud Pública

Invited talk about geospatial technologies applied to public health for the CODSpace webinar organized by CODS.

A novel method based on time series satellite data analysis to detect algal blooms

Water bodies eutrophication is a worldwide environmental problem characterized by excessive phytoplankton growth which often includes occurrence of harmful algal blooms events. Chlorophyll-a concentration is widely used as an indicator of biomass and …

Analyzing space-time satellite data for disease ecology applications with GRASS GIS and R stats

Workshop at OpenGeoHub Summer School 2019 about the analysis of space-time satellite data for disease ecology applications with GRASS GIS and R stats.

Analyzing space-time satellite data with GRASS GIS for environmental monitoring

Workshop at OpenGeoHub Summer School 2019 about the analysis of space-time satellite data with GRASS GIS for environmental monitoring.

Time Series Clustering Applied to Eco-Epidemiology: the case of Aedes aegypti in Córdoba, Argentina

Dengue fever is one of the most widespread vector-borne diseases in the world. The virus causing it is transmitted by Aedes aegypti mosquitoes. The prevention of virus transmission is mostly based on vector control, with vector surveillance as the …

Spatiotemporal data processing and visualization in GRASS GIS

Talk at Geostat 2018 about processing and visualizing time series data in GRASS GIS.

Identifying Favorable Spatio-Temporal Conditions for West Nile Virus Outbreaks by Co-Clustering of MODIS LST Indices Time Series

This study presents the first results of the use of co-clustering to identify potential spatial and temporal concurrences of favourable conditions for the emergence and maintenance of West Nile Virus (WNV) in Greece. We applied the Bregman block …

A New Fully Gap-Free Time Series of Land Surface Temperature from MODIS LST Data

Temperature time series with high spatial and temporal resolutions are important for several applications. The new MODIS Land Surface Temperature (LST) collection 6 provides numerous improvements compared to collection 5. However, being remotely …

CAN RECONSTRUCTED LAND SURFACE TEMPERATURE DATA FROM SPACE PREDICT A WEST NILE VIRUS OUTBREAK?

Temperature is one of the main drivers of ecological processes. The availability of temporally and spatially continuous temperature time series is crucial in different research and application fields, such as epidemiology and control of zoonotic …

pymodis, GDAL and GRASS GIS: A FOSS4G example to build time series of MODIS data

Recently, the National Aeronautics and Space Administration (NASA) has re-processed all the MODIS archive and made available the sixth version for all land products. In this post, I share a script that combines different FOSS4G tools to download, mosaic, re-project, subset, import, apply quality assessment flags and build a time series of MODIS LST daily products. First, we use the pymodis tool modis_download to automatically download 4 tiles of the MOD11A1 product for the period 2010-2016.