Written by , on March 12, 2015 in R, Training.
Last update on March 12, 2015.
Sixth seminar of "R brown-bag seminars" was held in ICRAF today. Leigh Winowiecki (PhD, Soil Scientist, CIAT) presented "Introduction to ggplot" topic. Presentation of today's seminar is available here.
Data used in this seminar is available here and source code from seminar 6 is shown below:
#Leigh Winowiecki
#ICRAF Training March 12, 2015
#load ...
Written by on March 6, 2015 in Biodiversity, Land Degradation, Deforestation, Soil Mapping.
Last update on March 6, 2015.
The field team from the ICRAF GeoScience Lab led by John Maina and Clement Okia (ICRAF Uganda) has completed the first of two Land Degradation Surveillance Framework (LDSF) sites on Mt Elgon in Uganda, as part of the project "Filling knowledge gaps on the restoration of degraded smallholder landscape mosaics". See slides below to get ...
After a one-week break, our brown-bag seminar series resumed again. In seminar 5, Antony Ndungu presented a number of different R graphing functions. Complete source code for the 5th seminar is available below, while the data used in the exercises can be found here.
NB! From next week, we will looking at the wonderful ggplot2 ...
The third and fourth R brown-bag seminars were held on 12th and 19th of February, respectively. Both seminars covered "Introduction to R".
Complete source code for both seminars is available at this link, while the data used in the exercises can be found here.
In fifth seminar (5th of March), Anthony Ndungu (a.ndungu@cgiar ...
Written by , on Feb. 11, 2015 in GIS, Software.
Last update on Feb. 11, 2015.
During the "Kenya Landuse Change" project conducted by the Climate Change Unit at ICRAF, several thousand aerial images were collected from surveys done in 1983 and 2012, respectively. During the last three months, the ICRAF GeoScience Lab has georeferenced this image archive to an accuracy of ~5m or better, with the help of six interns ...
The ICRAF GeoScience Lab and Research Methods Group are launching a weekly brown-bag seminar series at ICRAF. The two main objectives of the seminars are to:
This space (http://landscapeportal.org/blog/categories/R) will be used to ...
Written by on Aug. 5, 2014 in Biodiversity, Land Degradation, Deforestation, Soil Mapping.
Last update on Aug. 5, 2014.
We are in the process of developing an interactive online mapping and analytical platform, and have just released a test version for the Sentinel Landscapes initiative. Click here to run the application in a new window in your browser. You can also view the sites on the Landscapes Portal here.
Written by , on May 21, 2014 in Land Degradation.
Last update on May 21, 2014.
Conventional soil erosion models are generally based on the Universal Soil Loss Equation (USLE), or a revised (RUSLE) or modified (Williams and Berndt (1977)) version of the USLE. Betrie et al (2011) used the Soil and Water Assessment Tool (SWAT), which uses MUSLE to compute soil erosion, to model sediment transport in ...
Adding geotagged photos to your map can be a powerful way to visualize the landscape that you are mapping, or even as a way to validate your mapping outputs. In the Landscapes Portal you can do this in three simple steps when creating a new map or when editing one of the existing maps on ...