Seasonal and spatial variation in the stable isotopic composition (δ18O and δD) of precipitation in south Florida

Price, René M.; Swart, Peter K.; Willoughby, H. E.

doi:10.1016/j.jhydrol.2008.06.003

Cited by 95 publications

(90 citation statements)

References 57 publications

(56 reference statements)

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“…About 60-70 % of the rainfall occurs during the summer wet season from May to October with precipitation amounts higher than 95 mm (Black, 1993). In the beginning and end of the wet season, thunderstorms and hurricanes appear that may drop tens of centimeters of precipitation in a single event (Price et al, 2008). The major moisture source for precipitation in South Florida is evaporated seawater from the southeast of Florida.…”

Section: Climatementioning

confidence: 99%

Modeling calcification periods of <i>Cytheridella ilosvayi</i> from Florida based on isotopic signatures and hydrological data

Meyer

Wrozyna

Leis³

et al. 2017

Biogeosciences

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Abstract. The isotopic signatures of ostracod shells are the result of the temperature and composition of their host water and the phenology and ecology of the target species. Investigations addressing the influence of site-specific environmental variations on the isotopic ranges of ostracod shells are still rare but can provide important information on habitatdependent variations and may signify a seasonally restricted timing of calcification periods. Here we present isotopic signatures (δ 18 O ostr , δ 13 C ostr ) of living Cytheridella ilosvayi (Ostracoda) and physical, chemical, and isotopic (δD, δ 18 O water , δ 13 C DIC ) compositions of 14 freshwater habitats (rivers, lakes, canals, marshes, sinkholes) in South Florida from winter 2013 and summer 2014. We also present instrumental data of river temperatures and δ 18 O of precipitation (δ 18 O prec ) from this region. The physicochemical and isotopic compositions of the selected sites characterize the different habitats and show the influence of the source water, biological activity, and duration of exposure to the surface. Mean δ 18 O ostr and δ 13 C ostr signatures of C. ilosvayi shells correlate well with the isotopic composition of their host waters. Within-sample variabilities in repeated isotopic measurements of single ostracod shells reflect habitat-dependent ranges. The similarly high range of ostracod δ 18 O in rivers and one marsh sample indicates that both temperature and δ 18 O prec are responsible for their variation in the whole study area. Rivers and canals, which are predominantly influenced by the input and mixing of inorganic carbon from the catchment, show smaller δ 13 C ostr ranges than the marsh dominated by local fluctuations in biological activities.Based on these observations, background data of water temperatures and δ 18 O prec were used to calculate monthly δ 18 O variations in a theoretical calcite formed in rivers in Florida assuming a direct reaction on precipitation changes.The calculated values showed a high variation coupled with low mean values during the summer wet season, while during the winter dry season the variation remains small and mean values increased. Inferred configurations were used to approximate possible calcification periods of C. ilosvayi. For a plausible calcification period, mean values and ranges of δ 18 O ostr had to be equal to the theoretical calcite with a slight positive offset (vital effect). The applied model suggests a seasonal calcification period of C. ilosvayi in early spring that is probably coupled to the hydrologic cycle of Florida.

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Section: Climatementioning

confidence: 99%

Modeling calcification periods of <i>Cytheridella ilosvayi</i> from Florida based on isotopic signatures and hydrological data

Meyer

Wrozyna

Leis³

et al. 2017

Biogeosciences

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“…Wet-only precipitation samples at the MLG site were collected using a manual method described in Fu et al (2010a). The HHG9-ZJC-III sampler consists of a 25 cm diameter, borosilicate glass bucket (volume: 15 L) for precipitation collection and a moisture sensor that could move a cover from and back to the bucket at the onset and the end of a precipitation event using a mechanical arm, respectively (Price et al, 2008). The cover consists of a foam pad encased in plastic wrap and forces a tight seal over the borosilicate glass bucket to prevent evaporation of the sample.…”

Section: Precipitation Collection and Analysismentioning

confidence: 99%

Atmospheric wet and litterfall mercury deposition at urban and rural sites in China

Yang

Lang

et al. 2016

Atmos. Chem. Phys.

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Abstract. Mercury (Hg) concentrations and deposition fluxes in precipitation and litterfall were measured at multiple sites (six rural sites and an urban site) across a broad geographic area in China. The annual deposition fluxes of Hg in precipitation at rural sites and an urban site were 2.0 to 7.2 and 12.6 ± 6.5 µg m −2 yr −1 , respectively. Wet deposition fluxes of Hg at rural sites showed a clear regional difference with elevated deposition fluxes in the subtropical zone, followed by the temporal zone and arid/semi-arid zone. Precipitation depth is the primary influencing factor causing the variation of wet deposition. Hg fluxes through litterfall ranged from 22.8 to 62.8 µg m −2 yr −1 , higher than the wet deposition fluxes by a factor of 3.9 to 8.7 and representing approximately 75 % of the total Hg deposition at the forest sites in China. This suggests that uptake of atmospheric Hg by foliage is the dominant pathway to remove atmospheric Hg in forest ecosystems in China. Wet deposition fluxes of Hg at rural sites of China were generally lower compared to those in North America and Europe, possibly due to a combination of lower precipitation depth, lower GOM concentrations in the troposphere and the generally lower cloud base heights at most sites that wash out a smaller amount of GOM and PBM during precipitation events.

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“…At the western end of the slough is an estuarine zone including mangrove forests that extends approximately 30 km inland from the Gulf of Mexico. On the northern end, a ridge and slough landscape dominates, with sawgrass marshes and tree islands along the ridges, and floating and submerged aquatic macrophytes in the sloughs (Saha et al, 2012;Price, 2008).…”

Section: Delineation Of the Study Areamentioning

confidence: 99%

“…The majority of the inflow going through the above hydrological structure and into the ENP (70%) flows through Shark River Slough, with the remaining inflows reaching Taylor Slough to the southeast (Price et al, 2008). More than 90% of the flow through SRS region discharges into the Gulf of Mexico through five major rivers along the southwest coast (Levesque, 2004), corresponding to zones 4, 5, and 6 of ENP (Fig.…”

Section: Delineation Of the Study Areamentioning

confidence: 99%

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Ecological-economic assessment of the effects of freshwater flow in the Florida Everglades on recreational fisheries

Brown

Bhat

Rehage

et al. 2018

Science of The Total Environment

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• Develops an integrated methodology linking Everglades hydrology to economic values • First ever estimate of anglers' willingness to pay for Everglades recreational experience • Estimates losses in economic welfare due to missing freshwater delivery targets and implicit price of water use for recreation at $41.54 AF -1 • Relevant applications to management, restoration, and climate scenario analysis This research develops an integrated methodology to determine the economic value to anglers of recreational fishery ecosystem services in Everglades National Park that could result from different water management scenarios. The study first used bio-hydrological models to link managed freshwater inflows to indicators of fishery productivity and ecosystem health, then link those models to anglers' willingness-to-pay for various attributes of the recreational fishing experience and monthly fishing effort. This approach allowed us to estimate the foregone economic benefits of failing to meet monthly freshwater delivery targets. The study found that the managed freshwater delivery to the Park had declined substantially over the years and had fallen short of management targets. This shortage in the flow resulted in the decline of biological productivity of recreational fisheries in downstream coastal areas. This decline had in turn contributed to reductions in the overall economic value of recreational ecosystem services enjoyed by anglers. The study estimated the annual value of lost recreational services at $68.81 million. The losses were greater in the months of dry season when the water shortage was higher and the number of anglers fishing also was higher than the levels in wet season. The study also developed conservative estimates of implicit price of water for recreation, which ranged from $11.88 per AF in November to $112.11 per AF in April. The annual average price was $41.54 per AF. Linking anglers' recreational preference directly to a decision variable such as water delivery is a powerful and effective way to make management decision. G R A P H I C A L A B S T R A C T a b s t r a c t a r t i c l e i n f o Contents lists available at ScienceDirectScience of the Total Environment j o u r n a l h o m e p a g e : w w w . e l s e v i e r . c o m / l o c a t e / s c i t o t e n v This document is a U.S. government work and is not subject to copyright in the United States.This methodology has relevant applications to water resource management, serving as useful decision-support metrics, as well as for policy and restoration scenario analysis.

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Seasonal and spatial variation in the stable isotopic composition (δ18O and δD) of precipitation in south Florida

Abstract: Seasonal and Spatial variation in the stable isotopic composition (δ δ δ δ 18 O 1 and δ δ δ δD) of precipitation in south Florida

Cited by 95 publications

References 57 publications

Modeling calcification periods of <i>Cytheridella ilosvayi</i> from Florida based on isotopic signatures and hydrological data

Modeling calcification periods of <i>Cytheridella ilosvayi</i> from Florida based on isotopic signatures and hydrological data

Atmospheric wet and litterfall mercury deposition at urban and rural sites in China

Ecological-economic assessment of the effects of freshwater flow in the Florida Everglades on recreational fisheries

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Seasonal and spatial variation in the stable isotopic composition (δ18O and δD) of precipitation in south Florida

Abstract: Seasonal and Spatial variation in the stable isotopic composition (δ δ δ δ 18 O 1 and δ δ δ δD) of precipitation in south Florida

Cited by 95 publications

References 57 publications

Modeling calcification periods of &lt;i&gt;Cytheridella ilosvayi&lt;/i&gt; from Florida based on isotopic signatures and hydrological data

Modeling calcification periods of &lt;i&gt;Cytheridella ilosvayi&lt;/i&gt; from Florida based on isotopic signatures and hydrological data

Atmospheric wet and litterfall mercury deposition at urban and rural sites in China

Ecological-economic assessment of the effects of freshwater flow in the Florida Everglades on recreational fisheries

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Modeling calcification periods of <i>Cytheridella ilosvayi</i> from Florida based on isotopic signatures and hydrological data

Modeling calcification periods of <i>Cytheridella ilosvayi</i> from Florida based on isotopic signatures and hydrological data