Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Precipitation-temperature variability and drought episodes in northwest Baja California, México
Study region: The semi-arid wine region of Guadalupe Valley located in NW Baja California, México. Study focus: Recently, recurrent dry years have diminishing groundwater resources threatening agricultural activities and the well-being population in the northwest of Baja California. The climate variability through changes in precipitation and temperature might further the present situation. This study presents the observed long-term (1979–2016) hydro-climatic and temperature trends, extreme events, and drought periods in the Guadalupe Valley for its economic and social relevance in the region. New hydrological insights for the region: The results revealed the annual/seasonal precipitation rate reduction (from -110 to -172 mm) and an increase in mean annual/seasonal temperature (from 0.76 to 1.82 °C). We detected an abrupt downward change in annual precipitation in 1998, and a continuous period of reduction in precipitation rate from 1999 to 2016 (at least 17 years). Also, we detected an upward change in maximum temperature at 90, 95, 99th percentiles, and an increase in dry seasonal/annual periods after 1998. We linked the length of the meteorological drought to precipitation rate downward and drought severity to years with the lowest annual precipitation. The decrease of precipitation and increase in temperature have had negative impacts on groundwater availability that have affected agriculture and population. Hence specific adaptation strategies are necessary to mitigate regional hydrological impacts. Keywords: Guadalupe Valley BC, Homogeneity analysis, Mann-Kendall, Overexploited aquifer, Reconnaissance Drought Index, Semi-arid wine region, Sen’s slope
Precipitation-temperature variability and drought episodes in northwest Baja California, México
Study region: The semi-arid wine region of Guadalupe Valley located in NW Baja California, México. Study focus: Recently, recurrent dry years have diminishing groundwater resources threatening agricultural activities and the well-being population in the northwest of Baja California. The climate variability through changes in precipitation and temperature might further the present situation. This study presents the observed long-term (1979–2016) hydro-climatic and temperature trends, extreme events, and drought periods in the Guadalupe Valley for its economic and social relevance in the region. New hydrological insights for the region: The results revealed the annual/seasonal precipitation rate reduction (from -110 to -172 mm) and an increase in mean annual/seasonal temperature (from 0.76 to 1.82 °C). We detected an abrupt downward change in annual precipitation in 1998, and a continuous period of reduction in precipitation rate from 1999 to 2016 (at least 17 years). Also, we detected an upward change in maximum temperature at 90, 95, 99th percentiles, and an increase in dry seasonal/annual periods after 1998. We linked the length of the meteorological drought to precipitation rate downward and drought severity to years with the lowest annual precipitation. The decrease of precipitation and increase in temperature have had negative impacts on groundwater availability that have affected agriculture and population. Hence specific adaptation strategies are necessary to mitigate regional hydrological impacts. Keywords: Guadalupe Valley BC, Homogeneity analysis, Mann-Kendall, Overexploited aquifer, Reconnaissance Drought Index, Semi-arid wine region, Sen’s slope
Precipitation-temperature variability and drought episodes in northwest Baja California, México
Francisco José Del-Toro-Guerrero (Autor:in) / Thomas Kretzschmar (Autor:in)
2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Metadata by DOAJ is licensed under CC BY-SA 1.0
Baja california, mexico, endémico resguardo silvestre hotel
| Online Contents | 2013
Rodriguez Ambursen dam near Tijuana, Baja California, Mexico
Engineering Index Backfile | 1929
Coastal management in Mexico : the Baja California experience
| TIBKAT | 1993
Virtues of simple hydro-economic optimization: Baja California, Mexico
| Online Contents | 2009
Virtues of simple hydro-economic optimization: Baja California, Mexico
| Online Contents | 2009