Identification of Karst Forms Using LiDAR Technology: Cozumel Island, Mexico

Martínez, Óscar Frausto; Zapi-Salazar, Norma Angelica; OrlandoColin-Olivares,

doi:10.5772/intechopen.79196

Cited by 7 publications

(16 citation statements)

References 10 publications

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“…Like the nearby mainland, the carbonate island of Cozumel is topographically flat (mean 5 m in elevation) and the absence of fluvial systems means rainfall either directly evapotranspires or infiltrates into the unconfined aquifers (Perry et al, 2002;Beddows et al, 2007;Gondwe et al, 2010). Abundant sinkholes and well-developed cave networks impact subsurface hydrologic transport depending on seasonal rainfall and storms (Frausto-Martínez et al, 2018;Frausto-Martinez et al, 2021), which may change groundwater discharge rates and associated constituent transport to the coastal sea like on the Yucatán Peninsula (Young et al, 2008;Gonneea et al, 2014;Null et al, 2014). The region experiences microtides that span 0.1-0.2 m (Kjerfve, 1981), which also impacts daily groundwater table elevation.…”

Section: Study Sitementioning

confidence: 99%

Changes in Organic Matter Deposition Can Impact Benthic Marine Meiofauna in Karst Subterranean Estuaries

Brankovits

Little

Winkler

et al. 2021

Front. Environ. Sci.

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Subsurface mixing of seawater and terrestrial-borne meteoric waters on carbonate landscapes creates karst subterranean estuaries, an area of the coastal aquifer with poorly understood carbon cycling, ecosystem functioning, and impact on submarine groundwater discharge. Caves in karst platforms facilitate water and material exchange between the marine and terrestrial environments, and their internal sedimentation patterns document long-term environmental change. Sediment records from a flooded coastal cave in Cozumel Island (Mexico) document decreasing terrestrial organic matter (OM) deposition within the karst subterranean estuary over the last ∼1,000 years, with older sediment likely exported out of the cave by intense storm events. While stable carbon isotopic values (δ13Corg ranging from −22.5 to −27.1‰) and C:N ratios (ranging from 9.9 to 18.9) indicate that mangrove and other terrestrial detritus surrounding an inland sinkhole are the primarily sedimentary OM supply, an upcore decrease in bulk OM and enrichment of δ13Corg values are observed. These patterns suggest that a reduction in the local mangrove habitat decreased the terrestrial particulate OM input to the cave over time. The benthic foraminiferal community in basal core sediment have higher proportions of infaunal taxa (i.e., Bolivina) and Ammonia, and assemblages shift to increased miliolids and less infaunal taxa at the core-top sediment. The combined results suggest that a decrease in terrestrial OM through time had a concomitant impact on benthic meiofaunal habitats, potentially by impacting dissolved oxygen availability at the microhabitat scale or resource partitioning by foraminifera. The evidence presented here indicates that landscape and watershed level changes can impact ecosystem functioning within adjacent subterranean estuaries.

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Section: Study Sitementioning

confidence: 99%

Changes in Organic Matter Deposition Can Impact Benthic Marine Meiofauna in Karst Subterranean Estuaries

Brankovits

Little

Winkler

et al. 2021

Front. Environ. Sci.

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“…Es una terraza marina localizada en las coordenadas extremas 20° 20´y 20°24´ Norte y 86°56´ y 87° 00´ Este (ver Figura 1). Es un territorio inhóspito con selva mediana subperennifolia cuya flora principal son: zapote, chacah, ramón, etcétera, cuya altitud máxima es de 16.75 m. La temperatura promedio anual es de 25.5 grados Celsius y las precipitaciones alcanzan los 1 504 milímetros anuales (Frausto et al, 2018), el clima es cálido húmedo con lluvias en verano con un índice de Lang de 55.3 y alto porcentaje de lluvia invernal mayor a 10.2 (Orellana, Nava y Espadas, 2007). En el año 2016 contaba con un total de 100,363 habitantes, de los cuales 50,396 son hombres y 49,966 son mujeres (COESPO, 2019).…”

Section: áRea De Estudiounclassified

“…El relieve se representa cartográficamente mediante curvas de nivel (CN), éstas son la traza entre un plano horizontal y el relieve proyectadas en un mapa a escala (Lugo, 1988). En la representación del relieve, las técnicas disponibles juegan un papel importante y, utilizando insumos como la elaboración de Modelos Digitales del Terreno (MDT), ha permitido obtener información tridimensional del relieve de un área de estudio para extraer información topográfica, por ejemplo, en modelos raster o vectoriales de datos altimétricos, de pendiente, orientación, sombreado, entre otros (Frausto-Martínez, Zapi-Salazar y Colin-Olivares, 2018).…”

Section: Introductionunclassified

“…En la Península de Yucatán se han realizado diversos estudios enfocados a analizar el relieve kárstico y su bajo contraste altitudinal (Frausto et al, 2018, Colín et al, 2019y Fragoso-Servón et al, 2020. Las aproximaciones de análisis se han centrado principalmente en generar los primeros aportes para tener información precisa acerca de las formas del relieve presentes en un bajo contraste altitudinal y que, históricamente en la información geográficacartográfica oficial, se ha sobre generalizado (Ihl et al, 2007;Frausto e Ihl, 2008;Aguilar et al, 2016).…”

Section: Introductionunclassified

“…Una herramienta de detección y medición de la luz, que permite determinar la distancia desde un emisor láser a un objeto o superficie utilizando un haz de láser pulsado. Los datos de tecnología LiDAR ya se han utilizado en la península de Yucatán por Frausto et al, (2018) en donde, a partir de metodologías y herramientas del SIG, generaron insumos con una resolución de datos de 5 m para los ejes X y Y, y de 15-20 cm para el eje Z, lo que permitió identificar depresiones kársticas y generar la nueva cartografía exokárstica de bajo contraste altitudinal en la Isla de Cozumel, Quintana Roo, a una resolución de 25 cm en la vertical por píxel.…”

Section: Introductionunclassified

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Morfometria De Depresiones Kársticas a Escala Detallada: El Cedral, Cozumel - México

Martínez

Castillo

Olivares

2021

Trop Subtrop Agroecosyst

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Background. The morphological study of the relief allows an adequate classification of the shape and structure of the karst relief developed over time. Nowadays, there is a classification of the karstic relief that differentiates the units according to the dimension of its X, Y axis, in 3 main categories: poljes, uvala and doline (compactness index). Objective. Analyze and classify the karst depressions of the area known as El Cedral, located on the island of Cozumel, Mexico, as an alternative in understanding the evolution of the insular relief of the Caribbean. Methodology. The karstic relief was analyzed from the construction of a Digital Elevation Model (DEM) obtained from the construction of a light detection and ranging (LiDAR) data mosaic, derived from the nearest neighbor interpolation method applied to a cloud of points generated from the LAS. This model has a data resolution of 5 m for the X, Y axes, and 0.50 cm for the z axis; 45 cenotes were georeferenced from the field database and another 190 depressions were identified through remote sensing, taking as a criterion a minimum depth of 1m; in addition, the longitudinal profiles were generated by interpolating altitude data through the X axis of the depression, and the longitudinal profile was visualized and interpreted, which was drawn manually in 232 depressions. Results. Thus, a typological of the depressions is presented, based on the morphology of the profile in plan (in "V", "U" and " LI " forms), the depth and the gradient of the slopes. The main results are: The major axis oscillates from 31 to 434 m, with an average of 106 m; the maximum depth is 10.75 m and the minimum is 1.45 m, being the average 7.60 m; In the configuration, it is recognized that 56% corresponds to depressions of type V, 27% of type U and 17% to box type profiles; these last one’s present bottom in contact with the phreatic mantle and 70% with processes of permanent flooding. Implications. Geomorphological analyses of this type applied to places of low altitude contrast are scarce, many applied on a larger scale, adapting to the inputs available. The closest classification to this type of study, based on the profiles, is done in valleys, where the scale is larger and the altitude contrast is much greater. Conclusions. The distribution of these depressions is of a radial nature, which highlights the dissolution process associated with the original geological structure.

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Negative exokarstic units as a basis for urban management: Yucatan Peninsula, Mexico

May-Arias,

Frausto-Martínez,

Rodríguez-Castillo

et al. 2024

Discov Geosci

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Identification of Karst Forms Using LiDAR Technology: Cozumel Island, Mexico

Cited by 7 publications

References 10 publications

Changes in Organic Matter Deposition Can Impact Benthic Marine Meiofauna in Karst Subterranean Estuaries

Changes in Organic Matter Deposition Can Impact Benthic Marine Meiofauna in Karst Subterranean Estuaries

Morfometria De Depresiones Kársticas a Escala Detallada: El Cedral, Cozumel - México

Negative exokarstic units as a basis for urban management: Yucatan Peninsula, Mexico

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