Landscape controls of surface-water/groundwater interactions on shallow outwash lakes: how the long-term groundwater signal overrides interannual variability due to evaporative effects DOI Creative Commons
Kelly Hokanson, Benjamin J. Rostron, K. J. Devito

et al.

Hydrogeology Journal, Journal Year: 2021, Volume and Issue: 30(1), P. 251 - 264

Published: Nov. 30, 2021

Abstract The spatial and temporal controls on variability of the relative contributions groundwater within between flow systems to shallow lakes in low-relief glaciated Boreal Plains Canada were evaluated. Eleven located a coarse glacial outwash, varying topographic positions potential contributing areas, sampled annually for stable O H isotope ratios over course 8 years. It was demonstrated that landscape position is dominant control these pattern long-term isotopic compositions attributed overrides interannual due evaporative effects. Lakes at low with large capture areas have relatively higher more consistent composition. Isolated high experience as they little no input buffer volumetric or changes caused by evaporation precipitation. An alternative explanation lake morphometry (area volume) tested subsequently refuted. Landscape outwash strong predictor input; however, surface-water connections can short circuit pathways confound signal. A hydrogeological case study three used contextualize further demonstrate results.

Language: Английский

Spatial variability in the isotopic composition of water in small catchments and its effect on hydrograph separation DOI
Daniele Penna, Ilja van Meerveld

Wiley Interdisciplinary Reviews Water, Journal Year: 2019, Volume and Issue: 6(5)

Published: July 25, 2019

Abstract Hydrograph separation is a widely applied technique that uses the stable isotopes of water ( 2 H and 18 O) or other tracers to quantify contribution different sources streamflow. For its successful application it critical adequately characterize these (end‐members). In most small catchment studies, samples are collected from end‐members at one few locations assumed be representative for entire catchment. We tested this assumption by reviewing 148 papers used investigate hydrological processes in catchments up 10 km . assessed typical spatial variability isotopic composition compartments when they were sampled five more across The median reported was largest snowmelt soil water, followed throughfall shallow groundwater. To determine how might affect isotope‐based hydrograph results, we three‐component two real rainfall‐runoff events synthetic event adjusted (throughfall, groundwater) observed variability. estimated maximum contributions three components differed 26% reference scenario. This suggests caution needed interpreting results if based on taken only locations. Above all, show negligible may not valid catchments. article categorized under: Science Water > Hydrological Processes Methods

Language: Английский

Citations

47
Bridging the gap from hydrological to biogeochemical processes using tracer-aided hydrological models in a tropical montane ecosystem DOI
Juan Pesántez, Christian Birkel, Giovanny M. Mosquera

et al.

Journal of Hydrology, Journal Year: 2023, Volume and Issue: 619, P. 129328 - 129328

Published: March 3, 2023

Language: Английский

Citations

15
Dry season plant water sourcing in contrasting tropical ecosystems of Costa Rica DOI
Ricardo Sánchez‐Murillo,

Diego Todini‐Zicavo,

María Poca

et al.

Ecohydrology, Journal Year: 2023, Volume and Issue: 16(5)

Published: March 7, 2023

Abstract Tracer‐aided studies to understand plant water uptake sources and dynamics in tropical ecosystems are limited. Here, we report the analysis of dry season source patterns five unique Costa Rica across altitudinal (<150–3,400 m asl) latitudinal (Caribbean Pacific slopes) gradients: evergreen seasonal rainforests, cloud forest, Páramo forest. Soil samples were collected during 2021. Plant soil extractions conducted using centrifugation. Stem extracted volume stem total content calculated via gravimetric analysis. Water contributions estimated a Bayesian mixing model. Isotope ratios stems exhibited strong meteoric origin. Enrichment trends only detected cactus within forest ecosystem. profiles revealed nearly uniform isotopic profiles; however, depletion trend was observed ecosystem below 25 cm. More enriched compositions reported for volumes above ~20% ( adj. r 2 = 0.34, p < 0.01). The most prominent rainforest (74.0%), (86.4%) (66.0%) corresponded well‐mixed water. In ecosystem, recent rainfall produced by trade wind incursions resulted significant (61.9%), whereas mean annual precipitation (38.6%) baseflow (33.1%) dominant sources. latter highlights prevalence distinct between cold front (near‐surface storage) more moisture season, revealing ecohydrological processing previously unknown this region.

Language: Английский

Citations

14
Mapping Mountain Landforms and Its Dynamics: Study Cases in Tropical Environments DOI Creative Commons
Néstor Campos, Adolfo Quesada‐Román, Sebastián Granados-Bolaños

et al.

Applied Sciences, Journal Year: 2022, Volume and Issue: 12(21), P. 10843 - 10843

Published: Oct. 26, 2022

High mountain areas are critical for water security and natural hazard dynamics, as well glacier ecosystem conservation in a warming world. We present brief account of the methodological steps geomorphological mapping areas, including required scale, legends, technology, software. analyze best imagery sources their combination with fieldwork geographical information systems (GIS), performing accurate cartography. In addition, we two case studies which apply several methods described previously. Firstly, carried out classical digital Cerro Chirripó (Talamanca Range). Secondly, studied Reserva Biológica Alberto Manuel Brenes (Central Volcanic Range), where used UAVs to map high-resolution fluvial geomorphology. This framework is suitable future surveys worldwide. Moreover, can give ideas on application these approaches different mountainous environments.

Language: Английский

Citations

21
Long-term ecological stability in high mountain lakes of Costa Rica DOI
Neal Michelutti, Carsten Meyer‐Jacob, Christopher Grooms

et al.

Inland Waters, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 49

Published: April 23, 2025

Language: Английский

Citations

0
Glacial geomorphology of the Chirripó National Park, Costa Rica DOI Creative Commons
Adolfo Quesada‐Román, Juan Antonio Ballesteros‐Cánovas, Markus Stoffel

et al.

Journal of Maps, Journal Year: 2019, Volume and Issue: 15(2), P. 538 - 545

Published: June 30, 2019

ABSTRACT Several regions of tropical America show imprints past glacial activity. These relict landforms can support the understanding climate conditions, such as during Last Glacial Maximum (LGM), and implications that these paleoclimatic conditions could have had on landscape change. Here, we present analyze morphologies for Chirripó National Park in Costa Rica based aerial imagery (1:25,000), detailed Digital Elevation Models, geomorphic mapping, well assessments field to determine validate landforms. This study adds valuable insights into reconstruction maximum expansion glaciation LGM landscapes general.

Language: Английский

Citations

33
Tropical Paleoglacial Geoheritage Inventory for Geotourism Management of Chirripó National Park, Costa Rica DOI
Adolfo Quesada‐Román, Dennis Pérez-Umaña

Geoheritage, Journal Year: 2020, Volume and Issue: 12(3)

Published: June 24, 2020

Language: Английский

Citations

31
Equilibrium-line altitude and temperature reconstructions during the Last Glacial Maximum in Chirripó National Park, Costa Rica DOI
Adolfo Quesada‐Román, Néstor Campos, Jesús Alcalá-Reygosa

et al.

Journal of South American Earth Sciences, Journal Year: 2020, Volume and Issue: 100, P. 102576 - 102576

Published: March 31, 2020

Language: Английский

Citations

28
A concerted research effort to advance the hydrological understanding of tropical páramos DOI
Alicia Correa, B. F. Ochoa‐Tocachi, Christian Birkel

et al.

Hydrological Processes, Journal Year: 2020, Volume and Issue: 34(24), P. 4609 - 4627

Published: Sept. 14, 2020

Abstract Páramos, a neotropical alpine grassland‐peatland biome of the northern Andes and Central America, play an essential role in regional global cycles water, carbon, nutrients. They act as water towers, delivering ecosystem services from high mountains down to Pacific, Caribbean, Amazon regions. Páramos are also widely recognized biodiversity climate change hot spots, yet they threatened by anthropogenic activities environmental changes. Despite their importance for security carbon storage, vulnerability human activities, only three decades ago, páramos were severely understudied. Increasing awareness need hydrological evidence guide sustainable management prompted action generating data filling long‐standing knowledge gaps. This has led remarkably successful increase scientific knowledge, induced strong interaction between scientific, policy, (local) communities. A combination well‐established innovative approaches been applied collection, processing, analysis. In this review, we provide short overview historical development research state hydrometeorology, flux dynamics, impacts, influence extreme events páramos. We then present emerging technologies hydrology resources discuss how converging science policy efforts have leveraged traditional new observational techniques generate base that can support conclude co‐evolution was able successfully cover different spatial temporal scales. Lastly, outline future directions showcase long‐term collection foster responsible conservation towers.

Language: Английский

Citations

28
Tracing Water Sources and Fluxes in a Dynamic Tropical Environment: From Observations to Modeling DOI Creative Commons
Ricardo Sánchez‐Murillo, Germain Esquivel‐Hernández, Christian Birkel

et al.

Frontiers in Earth Science, Journal Year: 2020, Volume and Issue: 8

Published: Nov. 6, 2020

Tropical regions cover approximately 36% of the Earth's landmass. These are home to 40% world's population, which is projected increase over 50% by 2030 under a remarkable climate variability scenario often exacerbated El Niño Southern Oscillation (ENSO) and other teleconnections. In tropics, ecohydrological conditions typically influence complex land-ocean-atmosphere interactions that produce dynamic cycling mass energy reflected in clear partition water fluxes. Here, we present review seven years concerted continuous stable isotope monitoring across Costa Rica, including key insights learned, main methodological advances limitations (both experimental designs data analysis), potential gaps, future research opportunities with humid tropical perspective. The uniqueness geographic location Rica within mountainous Central America Isthmus, receiving moisture inputs from Caribbean Sea (windward) Pacific Ocean (complex leeward topography), experiencing strong ENSO events, poses advantage for use isotopic variations underpin drivers responses. sequential approach, analyzed transport, rainfall generation, groundwater/surface connectivity Bayesian rainfall-runoff modeling. overarching goal this provide robust example progressive escalation common observations more modeling outputs applications enhance resource management tropics.

Language: Английский

Citations

28