Search and Detection of Natural Oil Seeps in the Seas Surrounding the Russian Federation Using Spaseborne SAR Imagery

Ivanov, A. Yu.; Matrosova, Ekaterina; Kucheiko, A.Yu.; Филимонова, Н.А.; Evtushenko, N.V.; Terleeva, N.V.; Libina, N. V.

doi:10.1134/s0001433820120439

Cited by 11 publications

(2 citation statements)

References 17 publications

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“…Our estimated flux of natural oil in the Gulf of Mexico can be compared to flux rates in other highly productive regions. Annually, Coal Oil Point releases 1.4-7.3 × 10 4 bbl y −1 of oil into the waters offshore Santa Barbara, CA [77], the Black Sea releases 2.8 × 10 4 bbl y −1 of oil [34], and the Congo Basin releases approximately 2.75 × 10 4 bbl y −1 [69]. The estimated 1.73-6.69 × 10 5 bbl yr −1 released in the Gulf of Mexico is an order of magnitude larger than other productive hydrocarbon basins, even those with similar underlying geology.…”

Section: Discussionmentioning

confidence: 99%

Distribution, Magnitude, and Variability of Natural Oil Seeps in the Gulf of Mexico

et al. 2022

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The Gulf of Mexico is a hydrocarbon-rich region characterized by the presence of floating oil slicks from persistent natural hydrocarbon seeps, which are reliably captured by synthetic aperture radar (SAR) satellite imaging. Improving the state of knowledge of hydrocarbon seepage in the Gulf of Mexico improves the understanding and quantification of natural seepage rates in North America. We used data derived from SAR scenes collected over the Gulf of Mexico from 1978 to 2018 to locate oil slick origins (OSOs), cluster the OSOs into discrete seep zones, estimate the flux of individual seepage events, and calculate seep recurrence rates. In total, 1618 discrete seep zones were identified, primarily concentrated in the northern Gulf of Mexico within the Louann salt formation, with a secondary concentration in the Campeche region. The centerline method was used to estimate flux based on the drift length of the slick (centerline), the slick area, and average current and wind speeds. Flux estimates from the surface area of oil slicks varied geographically and temporally; on average, seep zones exhibited an 11% recurrence rate, suggesting possible intermittent discharge from natural seeps. The estimated average instantaneous flux for natural seeps is 9.8 mL s−1 (1.9 × 103 bbl yr−1), with an annual discharge of 1.73–6.69 × 105 bbl yr−1 (2.75–10.63 × 104 m3 yr−1) for the entire Gulf of Mexico. The temporal variability of average flux suggests a potential decrease following 1995; however, analysis of flux in four lease blocks indicates that flux has not changed substantially over time. It is unlikely that production activities in the Gulf of Mexico impact natural seepage on a human timescale. Of the 1618 identified seep zones, 1401 are located within U.S. waters, with 70 identified as having flux and recurrence rates significantly higher than the average. Seep zones exhibiting high recurrence rates are more likely to be associated with positive seismic anomalies. Many of the methods developed for this study can be applied to SAR-detected oil slicks in other marine settings to better assess the magnitude of global hydrocarbon seepage.

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Section: Discussionmentioning

confidence: 99%

Distribution, Magnitude, and Variability of Natural Oil Seeps in the Gulf of Mexico

et al. 2022

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“…Currently, the main studies of oceanic oil detection by SAR imaging focused on analyzing the backscatter signal or polarization, in a purely analytical way. Manuscripts such as [5][6][7][8] are references that spatially and statistically correlate some geochemical oil signatures such as: density, viscosity, API degree and molecular composition; with radar signal backscatter values. The API degree is a parameter used to classify the oil type or derivative and established by the American Petroleum Institute and had a direct relationship with the oil specific gravity (density), being and quality indicator [9].…”

Section: Introductionmentioning

confidence: 99%

Geochemical Analysis of Radar Backscatter (Sentinel-1) Over the Corsica Island Oil Spill

Mendonça LF

2022

PPS

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Offshore oil spills represent a major polluting potential in the marine environment [1,2]. Oil spill surveillance is a major part of contingency planning (Jha et al., 2008) and remote sensing techniques enable mapping these events in outlying areas. With essential information such as backscatter and polarimetry data that further the oil spill detection (Shinga et al., 2013). Therefore, the use of Synthetic Aperture Radar (SAR) data for mapping ocean oil spills has been widely applied, as well as the identification of oil on the ocean surface is independent of weather conditions and solar incidence [3]. As mineral oil has hydrophobic constituents, can persist on the ocean surface in the form of multiple layers [4].

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Strengthening oil pollution monitoring system in aquatic environment through development of IoT-based Oil-Water Separator Device

Budiman,

Ismardi,

Hardinah

et al. 2024

Ecohydrology & Hydrobiology

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Search and Detection of Natural Oil Seeps in the Seas Surrounding the Russian Federation Using Spaseborne SAR Imagery

Cited by 11 publications

References 17 publications

Distribution, Magnitude, and Variability of Natural Oil Seeps in the Gulf of Mexico

Distribution, Magnitude, and Variability of Natural Oil Seeps in the Gulf of Mexico

Geochemical Analysis of Radar Backscatter (Sentinel-1) Over the Corsica Island Oil Spill

Strengthening oil pollution monitoring system in aquatic environment through development of IoT-based Oil-Water Separator Device

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