Stream temperature estimated in situ from thermal-infrared images: best estimate and uncertainty

Iezzi, Fabrizio; Todisco, Maria Teresa

doi:10.1088/1742-6596/655/1/012063

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…This thermal pollution is a result of several, often interacting local and watershed scale perturbations, including hydrologic connections to impervious surfaces, increased exposure to solar radiation caused by decreased riparian canopy cover, decreased forested area in the watershed, and direct inputs of warm water from power plant effluents and stormwater infrastructure (Somers et al. 2013; Iezzi and Todisco 2015; Ketabchy et al. 2019; Reza et al.…”

Section: Introductionmentioning

confidence: 99%

The Hydrological Urban Heat Island: Determinants of Acute and Chronic Heat Stress in Urban Streams

Zahn

Welty

Smith

et al. 2021

J American Water Resour Assoc

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During and after rainfall events, the interaction of precipitation with hot urban pavements leads to hot runoff, and its merger with urban streams can result in an abrupt change in water temperature that can harm aquatic ecosystems. To understand this phenomenon and its relation to land cover and hydrometeorological parameters, we analyzed data spanning two years from 100 sites in the eastern United States. To identify surges, we first isolated temperature jumps of at least 0.5°C over 15 min occurring simultaneously with water flow increase. Surge magnitude was defined as the difference between peak stream temperature and baseflow temperature right before the jump. At least 10 surges were observed in 53 of the studied streams, with some surges exceeding 10°C. Our results demonstrate that the watershed developed area and vegetation fraction are the best descriptors of surge frequency (Spearman correlation of 0.76 and 0.77, respectively). On the other hand, for surge magnitude and peak temperature, the primary drivers are stream discharge and stream temperature immediately before the surge. In general, the more urbanized streams were found to be already warmer than their more “vegetated” counterparts during baseflow conditions, and were also the most affected by temperature surges. Together, these findings suggest the existence of a hydrological urban heat island, here defined as the increase in stream temperature (chronic and/or acute), caused by increased urbanization.

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Section: Introductionmentioning

confidence: 99%

The Hydrological Urban Heat Island: Determinants of Acute and Chronic Heat Stress in Urban Streams

Zahn

Welty

Smith

et al. 2021

J American Water Resour Assoc

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“…Sedano-Cibrián et al [87] and Koparan et al [88,89] indicate that water quality can be assessed by, among other things, temperature. Iezzi and Todisco [90] note that water temperature can be influenced by natural and anthropological factors. Various measurement techniques can be used to measure water temperature, primarily based on probing and measuring points [Ibidem], as well as modern methods based on the use of thermal infrared techniques [91] and also unmanned aerial vehicles [87].…”

Section: Identification Of Flowing Water On the Basis Of Thermal Orth...mentioning

confidence: 99%

Towards a Long-Term Unmanned Aerial Vehicle (UAV) Monitoring Framework for Post-Mining Effects: Prosper-Haniel Case

Pawlik,

Haske,

Flores

et al. 2024

Mining

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Direct and indirect effects after mine operations cease operating must ideally be subjected to perpetual monitoring routines in order to detect possible risks or avoid adverse effects on the surrounding ecosystems at an early stage. In this contribution, mining subsidence lakes created inside the nature reserve Kirchheller Heide and Hilsfeld Forest are subjected to analysis for a long-term monitoring scheme. For this purpose, we employ high-resolution unmanned aerial system (UAS)-based multispectral and thermal mapping tools to provide a fast, non-invasive and multitemporal environmental monitoring method. Specifically, we propose to monitor vegetation evolution through multispectral analysis, biotypes identification using machine learning algorithms, and water surface extent detection, together with their thermal behavior. The aim of this contribution is to present the proposed workflow and first results to establish a baseline for future analyses and subsequent surveys for long-term multi-temporal monitoring.

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Thermal Water Prospection with UAV, Low-Cost Sensors and GIS. Application to the Case of La Hermida

Sedano-Cibrián

Pérez-Álvarez

Luis-Ruiz

et al. 2022

Sensors

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The geothermal resource is one of the great sources of energy on the planet. The conventional prospecting of this type of energy is a slow process that requires a great amount of time and significant investments. Nowadays, geophysical techniques have experienced an important evolution due to the irruption of UAVs, which combined with infrared sensors can provide great contributions in this field. The novelty of this technology involves the lack of tested methodologies for their implementation in this type of activities. The research developed is focused on the proposal of a methodology for the exploration of hydrothermal resources in an easy, economic, and rapid way. The combination of photogrammetry techniques with visual and thermal images taken with UAVs allows the generation of temperature maps or thermal orthomosaics, which analyzed with GIS tools permit the quasi-automatic identification of zones of potential geothermal interest along rivers or lakes. The proposed methodology has been applied to a case study in La Hermida (Cantabria, Spain), where it has allowed the identification of an effluent with temperatures close to 40 °C, according to the verification measurements performed on the geothermal interest area. These results allow validation of the potential of the method, which is strongly influenced by the particular characteristics of the study area.

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Stream temperature estimated in situ from thermal-infrared images: best estimate and uncertainty

Cited by 3 publications

References 16 publications

The Hydrological Urban Heat Island: Determinants of Acute and Chronic Heat Stress in Urban Streams

The Hydrological Urban Heat Island: Determinants of Acute and Chronic Heat Stress in Urban Streams

Towards a Long-Term Unmanned Aerial Vehicle (UAV) Monitoring Framework for Post-Mining Effects: Prosper-Haniel Case

Thermal Water Prospection with UAV, Low-Cost Sensors and GIS. Application to the Case of La Hermida

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