NCMP reports

• Poster: South Africa’s national water quality monitoring data: A guide to the effective use of the national inland water quality database for monitoring change (2018) - SASAqS - 1.3Mb - and abstract.
• Poster: Internet based data sharing solutions for facilitating water quality data distribution to researchers, stakeholders, and policy makers, using R, Google Earth and leaflet (2017) - IAHS - 3.1Mb - and abstract.
• Poster: An anomaly in pH values in the South African national water quality monitoring database (2017) - SASAqS - 2.5Mb - and abstract.
• Presentation: Applications using R for mapping water quality data in South Africa (2015) - SASAqS - 1.8Mb.
• Poster: Parallel drainages - the urban hydrology of the Moreletaspruit. In 17th SANCIAHS National Hydrology Symposium, UWC. SANCIAHS - 2.6Mb - and abstract.
• Poster: Spatial variation in the TDS to EC ratio in South African rivers (2012) - SASAqS - 1.6Mb.
• Poster: Representing multiple water quality variables spatially—a comparison of groundwater and surface water in South Africa (2010) - 2.8Mb - and compressed version - 0.4Mb.
• Poster: Internet-based analysis of long-term data: motion charts to visualise water quality in South African rivers (2010) - 0.8Mb - and handout - 0.5Mb.
• Poster: Using the Google Gapminder motion chart gadget to visualise long-term chloride-to-sulphate ratios in South African rivers (2009) - 0.3Mb.
• Report: National Water Resource Quality Status - Inorganic Chemical Water Quality of Surface Water Resources - The Big Picture (2002).
  This report provides information on the major inorganic chemical water quality constituents of surface waters across South Africa, for water resource managers, scientists, decision-makers, and the public. It provides an overview of the status of surface chemical water quality at that time, according to the water quality requirements of two water user sectors, namely, domestic water use and irrigated agriculture water use. (Archive of split file for slow Internet connections.)
• Poster: Mapping Water Quality on a Desktop Computer (2002)

NCMP data visualisation

• Excel 2007 spreadsheet for Maucha symbol (uses CaCO₃ in alkalinity calculation)
• Excel 2003 spreadsheet for Maucha symbol (uses CaCO₃ in alkalinity calculation)
• Explanation of the Maucha symbol
• R script to plot Maucha diagrams on a map
• Maucha09.txt (ArcGIS 9.2 VBA program to draw Maucha ionic diagrams)
• Google Documents spreadsheet motion chart test with inorganic water quality data ("Gapminder" style) - a large file that will hang on slow Internet links
• ArcView scripts for ArcView project
• Maucha.pas (old Pascal program to draw Maucha ionic diagrams)
• SQL code for WMS
• Perl script wms2wmrq.pl
• awk script wmq2info.awk
• Percentile AML meaner.aml
• Graphing AML barcode.aml
• ArcView project (5Mb .ZIP - no layers or water quality data)
• Biomonitoring mapping (old Arc Macro Language - AML - script to place site status icons so that they do not overlap)
• Silberbauer, M.J. and Howman, A.M. (2001) National land cover atlas for the Resource Directed Measures programme. Report number N/0000/00/REQ/0700.