Pieter van der Zaag | UNESCO-IHE Institute for Water Education (original) (raw)
Papers by Pieter van der Zaag
Physics and Chemistry of The Earth, 2009
Physics and Chemistry of the Earth, Parts A/B/C, 2010
Climate change occurs over relatively long time scales, although some acceleration in changes can... more Climate change occurs over relatively long time scales, although some acceleration in changes can also be seen in data of the last twenty years. The reasons for the current changes in the climatological variables might be anthropogenic (e.g. greenhouse gas emission) or natural (e.g. solar variability etc.), or most likely a combination of both reasons. An increasing body of evidence shows that greenhouse gas emissions are changing our climate significantly. Climate change is projected to substantially reduce available water (as reflected by projected runoff from a catchment) in many of the water- scarce areas of the world A statistical analysis was carried out of over fifty years of precipitation, temperature and runoff data from several locations in the Mzingwane Catchment - the portion of the Limpopo Basin that falls within Zimbabwe. The trends show declines in precipitation and runoff and increases in maximum and minimum temperatures, across the catchment. The trends observed are...
Water and Energy Abstracts, 2008
This paper presents an analytical framework that helps in under standin tghe different aspects an... more This paper presents an analytical framework that helps in under standin tghe different aspects and elements of sustainable watershed management and their interactions. For a watershed project to be sustainable, four groups of criteria should be considered related to natural resources, technology, institutions and economics, respectively. A suitable metaphor for these four elements is a chain of shackles, the chain being as strong as the weakest shackle. This framework has been illustrated with two case studies in Kerala, South India.
... Document details. Title Chicanery at the canal: changing practice in irrigation management in... more ... Document details. Title Chicanery at the canal: changing practice in irrigation management in western Mexico. Authors Zaag, P. van der Book Chicanery at the canal: changing practice in irrigation management in western Mexico. 1992 pp. 267pp. ...
Physics and Chemistry of The Earth, 2009
Physics and Chemistry of the Earth, Parts A/B/C, 2010
Climate change occurs over relatively long time scales, although some acceleration in changes can... more Climate change occurs over relatively long time scales, although some acceleration in changes can also be seen in data of the last twenty years. The reasons for the current changes in the climatological variables might be anthropogenic (e.g. greenhouse gas emission) or natural (e.g. solar variability etc.), or most likely a combination of both reasons. An increasing body of evidence shows that greenhouse gas emissions are changing our climate significantly. Climate change is projected to substantially reduce available water (as reflected by projected runoff from a catchment) in many of the water- scarce areas of the world A statistical analysis was carried out of over fifty years of precipitation, temperature and runoff data from several locations in the Mzingwane Catchment - the portion of the Limpopo Basin that falls within Zimbabwe. The trends show declines in precipitation and runoff and increases in maximum and minimum temperatures, across the catchment. The trends observed are...
Water and Energy Abstracts, 2008
This paper presents an analytical framework that helps in under standin tghe different aspects an... more This paper presents an analytical framework that helps in under standin tghe different aspects and elements of sustainable watershed management and their interactions. For a watershed project to be sustainable, four groups of criteria should be considered related to natural resources, technology, institutions and economics, respectively. A suitable metaphor for these four elements is a chain of shackles, the chain being as strong as the weakest shackle. This framework has been illustrated with two case studies in Kerala, South India.
... Document details. Title Chicanery at the canal: changing practice in irrigation management in... more ... Document details. Title Chicanery at the canal: changing practice in irrigation management in western Mexico. Authors Zaag, P. van der Book Chicanery at the canal: changing practice in irrigation management in western Mexico. 1992 pp. 267pp. ...