Now showing items 1-20 of 68

    • A review of the main drivers and variability of Central America’s Climate and seasonal forecast systems 

      Maldonado Mora, Tito José; Alfaro Martínez, Eric J.; Hidalgo León, Hugo G. (2018-04)
      América Central es una región susceptible a desastres naturales y cambio climático. En el presente estudio, se revisaron los principales forzantes atmosféricos y oceánicos, así como los moduladores del clima que afectan ...
    • A Tri-dimensional Approach to Climate Sciences 

      Alfaro Martínez, Eric J.; Hidalgo León, Hugo G.; Maldonado Mora, Tito José; Pérez Briceño, Paula Marcela; Mora Sandí, Natalie P. (2018)
      Climate variability on seasonal and inter-annual time scales, as manifested through years of flood versus drought conditions, represent a significant challenge for Central America. A good or bad rainfall season impacts ...
    • Las aguas urbanas en Costa Rica 

      Hidalgo León, Hugo G.; Herrero Madriz, Carolina; Alfaro Martínez, Eric J.; Muñoz, Ángel G.; Mora Sandí, Natalie P.; Mora Alvarado, Darner A.; Chacón Salazar, Víctor H. (2015-03)
      Se presenta una síntesis de los principales temas relacionados con las aguas urbanas como lo son el abastecimiento, el saneamiento, la salud, las dimensiones físicas y humanas, las inundaciones y la variabilidad y cambio ...
    • Alternative principal components regression procedures for dendrohydrologic reconstructions 

      Hidalgo León, Hugo G.; Piechota, Thomas C.; Dracup, John A. (2000-11)
      Streamflow reconstruction using tree ring information (dendrohydrology) has traditionally used principal components analysis (PCA) and stepwise regression to form a transfer function. However, PCA has several procedural ...
    • Assessment of Central America Regional Climate Outlook Forum maps, 1998-2013 

      Alfaro Martínez, Eric J.; Hidalgo León, Hugo G.; Mora Sandí, Natalie P.; Pérez Briceño, Paula Marcela; Fallas López, Berny (2016)
      Starting 1997, the Regional Climate Outlook Forums or RCOFs have taken place in different Latin American countries, as an effort to generate climatic prediction products. “since 2000, the Forum is organized in Central ...
    • Assessment of the Impacts of Climate Change on the Water Allocation, Water Quality and Salmon Production in the San Joaquin River Basin 

      Hidalgo León, Hugo G.; Brekke, Levi D.; Miller, Norman L.; Quinn, Nigel William Trevelyan; Keyantash, J.; Dracup, John A. (2006-01-27)
      2 Assessment of the Impacts of Climate Change on the Water Allocation, Water Quality and Salmon Production in the San Joaquin River Basin H. Hidalgo, L. Brekke, N. Miller, N. Quinn, J. Keyantash and J. Dracup INTRODUCTION ...
    • Associations of decadal to multidecadal sea-surface temperature variability with Upper Colorado River flow 

      McCabe, Gregory J.; Betancourt, Julio L.; Hidalgo León, Hugo G. (2007-02)
      The relations of decadal to multidecadal (D2M) variability in global sea-surface temperatures (SSTs) with D2M variability in the flow of the Upper Colorado River Basin (UCRB) are examined for the years 1906- 2003. Results ...
    • Associations of multi-decadal sea-surface temperature variability with US drought 

      McCabe, Gregory J.; Betancourt, Julio L.; Palecki, Michael A.; Hidalgo León, Hugo G.; Gray, Stephen T. (2008-09)
      Recent research suggests a link between drought occurrence in the conterminous United States (US) and sea surface temperature (SST) variability in both the tropical Pacific and North Atlantic Oceans on decadal to multidecadal ...
    • Attribution of Declining Western U.S. Snowpack to Human Effects 

      Pierce, David W.; Barnett, Tim P.; Hidalgo León, Hugo G.; Das, Tapash; Bonfils, Céline; Santer, Benjamin D.; Bala, Govindasamy; Dettinger, Michael D.; Cayan, Daniel R.; Mirin, Arthur A.; Wood, Andrew W.; Nozawa, Toru (2008-12-01)
      Observations show snowpack has declined across much of the western United States over the period 1950–99. This reduction has important social and economic implications, as water retained in the snowpack from winter storms ...
    • California Climate Change Center Report Series Number 2008-0XX 

      Miller, Norman L.; Duffy, P. B.; Cayan, Daniel R.; Hidalgo León, Hugo G.; Jin, J.; Kanamaru, H.; Kanamitsu, M.; O'Brien, T.; Schlegel, N. J.; Sloan, L. C.; Snyder, M. A.; Yoshimura, Kei (2008-06)
      Four dynamic regional climate models (RCMs) and one statistical downscaling approach were used to downscale 10 years of historical climate in California. To isolate possible limitations of the downscaling methods, we ...
    • Cambio climático y su efecto sobre los servicios ecosistémicos en dos parques nacionales de Costa Rica, América Central 

      Moreno Díaz, Mary Luz; Hidalgo León, Hugo G.; Alfaro Martínez, Eric J. (2019)
      En el presente artículo se realiza un análisis de los principales servicios ecosistémicos brindados por dos Parques Nacionales de Costa Rica, Palo Verde y Rincón de la Vieja, así como una aproximación al valor de su ...
    • Cambios de la Irradiancia Solar y Determinación de la Turbiedad Atmosférica en Costa Rica Durante el Eclipse Total del 11 de Julio de 1991 

      Fernández Rojas, Walter; Castro, Vilma; Hidalgo León, Hugo G.; Wright Gilmore, Jaime; Sáenz, Alejandro (Observaciones Científicas Realizadas en Costa Rica (W. Fernández, ed.) Editorial de la Universidad de Costa Rica, 1992)
      Con motivo de la ocurrencia de un eclipse total de Sol, el 11 de junio de 1991, se hicieron mediciones de la radiación global en varios lugares de Costa Rica. En dos de estos lugares, Puntarenas y Santa Cruz, se hicieron ...
    • Can climate variability information constrain a hydrological model for an ungauged Costa Rican catchment? 

      Quesada Montano, Beatriz; Westerberg, Ida K.; Fuentes Andino, Diana; Hidalgo León, Hugo G.; Halldin, Sven (2018)
      Long‐term hydrological data are key to understanding catchment behaviour and for decision making within water management and planning. Given the lack of observed data in many regions worldwide, such as Central America, ...
    • Central America and the Caribbean 

      Amador Astúa, Jorge Alberto; Hidalgo León, Hugo G.; Alfaro Martínez, Eric J.; Durán Quesada, Ana María; Calderón Solera, Blanca (2016)
      This chapter provides summaries of the 2015 temperature and precipitation conditions across seven broad regions: North America, Central America and the Caribbean, South America, Africa, Europe, Asia, and Oceania. In most ...
    • Changes in Aridity in the Western United States 

      Hidalgo León, Hugo G.; Dettinger, Michael D.; Cayan, Daniel R. (2008-08)
      It is often remarked that most of the western US (Figure 1) is “always in drought,” especially by visitors from wetter climates. The plants and landforms of the West, however, are more or less adapted to the region’s ...
    • Clima, variabilidad y cambio climático en la Vertiente Caribe de Costa Rica: Un estudio básico para la actividad bananera 

      Amador Astúa, Jorge Alberto; Alfaro Martínez, Eric J.; Hidalgo León, Hugo G.; Soley Alfaro, Francisco Javier; Solano Chaves, Flora J.; Vargas, José Luis; Sáenz Soto, Fernán; Calderón Solera, Blanca; Pérez Briceño, Paula Marcela; Vargas, Juan J.; Díaz Bolaños, Ronald Eduardo; Goebel McDermott, Anthony; Montero Cordero, Andrea; Rodríguez, Jorge; Salazar Murillo, Alberto Jesús; Ureña Mora, Pablo; Mora Sandí, Natalie P.; Rivera, Ingrid; Vega, Carla; Bojorge, Carlos (2013-09)
      Este Informe Final (IF) describe en forma sintética, los alcances y productos del proyecto “Clima, variabilidad y cambio climático en la Vertiente Caribe de Costa Rica: Un estudio básico para la actividad bananera”, en ...
    • Climate change scenarios and sea level rise estimates for California 2008 Climate Change Scenarios Assessment 

      Cayan, Daniel R.; Tyree, Mary; Dettinger, Michael D.; Hidalgo León, Hugo G.; Das, Tapash; Maurer, Edwin P.; Bromirski, Peter; Graham, Nicholas A. J.; Flick, Reinhard (2009-03)
      For the 2008 California Climate Change Assessment, to further investigate possible future climate changes in California, a set of 12 climate change model simulations was selected and evaluated. From the Intergovernmental ...
    • Climate change, ecosystems and smallholder agriculture in Central America: an introduction to the special issue 

      Imbach, Pablo; Beardsley, Megan; Bouroncle Seoane, Claudia; Medellin, Claudia Patricia; Läderach, Peter; Hidalgo León, Hugo G.; Alfaro Martínez, Eric J.; van Etten, Jacob; Allan, Robert; Hemming, Debbie; Stone, Roger; Hannah, Lee; Donatti, Camila I. (2017-03)
      Central America is one of the regions most exposed to climate change (Giorgi 2006). A narrow isthmus between the Pacific Ocean and the Caribbean Sea, it is strongly affected by droughts, hurricanes and the El Niño-southern ...
    • Climate Change, Growth, and California Wildfire 

      Westerling, Anthony LeRoy; Bryant, B. P.; Preisler, Haiganoush K.; Hidalgo León, Hugo G.; Das, Tapash; Sudhir Raj Shrestha (2009-03)
      Large wildfire occurrence and burned area are modeled using hydroclimate and landsurface characteristics under a range of future climate and development scenarios. The range of uncertainty for future wildfire regimes is ...
    • Climate precursors of multidecadal drought variability in the western United States 

      Hidalgo León, Hugo G. (2004-12-07)
      Low-frequency (periodicities lower than 20 years) hydrologic variability in the western United States over the past 500 years is studied using available tree-ring reconstructions of Palmer Drought Severity Index (PDSI), ...