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Precipitation data in a mountainous catchment in Honduras: quality assessment and spatiotemporal characteristics
Department of Earth Sciences, Uppsala University, Uppsala, Sweden.
Department of Earth Sciences, Universty of Gothenburg, Gothenburg, Sweden.
Department of Earth Sciences, Uppsala University, Uppsala, Sweden.
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Water Management. (Land and Water Resources)
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2010 (English)In: Journal of Theoretical and Applied Climatology, ISSN 0177-798X, E-ISSN 1434-4483, Vol. 101, no 3-4, 381-396 p.Article in journal (Refereed) Published
Abstract [en]

An accurate description of temporal and spatial precipitation variability in Central America is important for local farming, water supply and flood management. Data quality problems and lack of consistent precipitation data impede hydrometeorological analysis in the 7,500 km(2) Choluteca River basin in central Honduras, encompassing the capital Tegucigalpa. We used precipitation data from 60 daily and 13 monthly stations in 1913-2006 from five local authorities and NOAA's Global Historical Climatology Network. Quality control routines were developed to tackle the specific data quality problems. The quality-controlled data were characterised spatially and temporally, and compared with regional and larger-scale studies. Two gap-filling methods for daily data and three interpolation methods for monthly and mean annual precipitation were compared. The coefficient-of-correlation-weighting method provided the best results for gap-filling and the universal kriging method for spatial interpolation. In-homogeneity in the time series was the main quality problem, and 22% of the daily precipitation data were too poor to be used. Spatial autocorrelation for monthly precipitation was low during the dry season, and correlation increased markedly when data were temporally aggregated from a daily time scale to 4-5 days. The analysis manifested the high spatial and temporal variability caused by the diverse precipitation-generating mechanisms and the need for an improved monitoring network.

Place, publisher, year, edition, pages
2010. Vol. 101, no 3-4, 381-396 p.
National Category
Natural Sciences Water Engineering
Identifiers
URN: urn:nbn:se:kth:diva-50675DOI: 10.1007/s00704-009-0222-xISI: 000280578900012OAI: oai:DiVA.org:kth-50675DiVA: diva2:462392
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QC 20111207

Available from: 2011-12-07 Created: 2011-12-07 Last updated: 2017-12-08Bibliographically approved
In thesis
1. Insufficient water supply in an urban area - case study: Tegucigalpa, Honduras
Open this publication in new window or tab >>Insufficient water supply in an urban area - case study: Tegucigalpa, Honduras
2011 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Tegucigalpa, the capital of Honduras, has experienced an unsatisfied water demand during the last three decades. The state owned water utility in charge of the water supply of the country, SANAA, has faced this deficit by providing an intermittent water supply. The intermittent water supply has increased the gap between the rich and the poor, who cannot afford water storage facilities. Theories explain water scarcity either by low precipitation or by lack of investment in water structures. This thesis investigates the applicability of both explanations by quantifying the annual precipitation in the sub catchments with water supply potential for Tegucigalpa, and identifying the problems which caused the lack of investment into the water infrastructure. The analysis concluded that even if the annual precipitation is abundant, it is not evenly distributed in time and in space. Furthermore, it is argued that the financial limitations which hindered the lack of investment in water structures originated in the low tariffs imposed, and to the practices of the patronage system.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2011. 27 p.
Series
Trita-LWR. LIC, ISSN 1650-8629 ; 2058
Keyword
water supply, Honduras, SANAA, Tegucigalpa, water utility
National Category
Natural Sciences Water Engineering
Identifiers
urn:nbn:se:kth:diva-50503 (URN)978-91-7501-211-7 (ISBN)
Presentation
2011-12-14, V3, KTH, Teknikringen 72, Stockholm, 14:00 (English)
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Note
QC 20111207Available from: 2011-12-07 Created: 2011-12-06 Last updated: 2011-12-07Bibliographically approved

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