Ivan Lizarazo

Recently Published

Illustration of an animated cartogram
This notebook uses a 1993-2015 time series with the undernourished population percentage by country and population data for producing cartograms showing number of people severely affected by food insecurity.
Useful geometric operations
Illustration of a meaningful set of convex hull, alpha hull and buffer operations.
Women in the world - No. 1
A proof-of_concept on women and gender inequality
Mapping World Development Indicators
A guide for mapping development indicators using World Bank data.
Reading and plotting GPX with R
There are several options to read, transform, and display point and track data stored in GPS Exchange (GPX) format using R. This notebook shows one of them.
G4D - Assignment No. 1
Here you find detailed instructions to write your own notebook.
Geospatial data in R
A synthesis based on
Making basic graphics in R
As said.
Procesamiento de la base de datos global armonizada de suelos (HWSD) usando R
Esta nota explica cómo acceder y consultar la base de datos global armonizada de suelos (HWSD) [3] usando R, el programa estadístico de software libre [7]. Estas instrucciones permiten la integración de HWSD con otros datos geoespaciales y facilitan la ejecución de análisis estadísticos.
Soil Moisture Accuracy Assessment
This document evaluates accuracy of soil moisture estimated from remotely sensed data. A SMAP Level 3 dataset is used as reference.
SMAP data
This document describes how to search and download NASA SMAP data.
Surface Soil Moisture from Remotely Sensed Data
Proof of concept to estimate surface soil moisture from topographic and multispectral índices.
Accessing NASA data
A brief overview of the nasadata package functionalities
Testing GSIF and RQGIS packages
This is a simple test of a few geospatial functionalities
Soil Mapping 1