THE DETECTION AND MAPPING OF OIL ON A MARSHY AREA BY A REMOTE LUMINESCENT SENSOR1

1977 ◽  
Vol 1977 (1) ◽  
pp. 197-201 ◽  
Author(s):  
Craig McFarlane ◽  
Robert D. Watson

ABSTRACT Airborne remote sensing can be a cost-effective method for monitoring pollutants in large areas such as occur in oil spills. An opportunity to test a particular method arose when a well ruptured and for 23 days spewed a 90-meter fountain of oil into the air, dispersing the oil over a wide area. The method tested was an airborne luminescence detector with a Fraunhofer Line Discriminator (FLD) which was flown over the affected area 41 days after the well was capped to obtain a map of the deposition pattern. To calibrate the system, samples of Spartina (wire grass) and Phragmites (common reed) were collected from the contaminated area and the oil residues were eluted in cyclohexane and quantitatively analyzed in a fluorescence photometer. Good correlation was observed between the remote sensor (FLD) and the laboratory analysis. Isopleths defining the deposition pattern of oil were drawn from the remote sensing information. A discussion will be presented on the feasibility of using this instrument for similar contamination incidents for cleanup and damage assessment.

1989 ◽  
Vol 1989 (1) ◽  
pp. 275-279 ◽  
Author(s):  
Laura Geselbracht ◽  
Jonathan Rubin ◽  
Thomas M. Leschine

ABSTRACT A state legislature sponsored study of Washington's oil spill damage assessment programs has revealed a number of problems. Studies designed to assess damages following major marine oil spills have not always been cost-effective and appropriate, state oil spill response activities have been difficult to fund, agencies have had difficulties spending damage recoveries in accordance with state law, and laws and regulations provide inadequate guidance on how to monetize resource damages identified. In addition, state agencies lack an alternative to field-based studies for compensation recovery in situations where damages are for all intents and purposes unquantifiable. An examination of CERCLA-based natural resource damage assessment procedures, the civil penalties in lieu of damages system employed by the State of Alaska, and other damage assessment practices had led to a recommendation for substantial changes in state marine resource damage assessment procedures. The recommended approach emphasizes the use of CERCLA-like preassessment screening to guide decisions about whether to quantify damages through field studies or to charge civil penalties in lieu of damages, as done in Alaska. In addition, emphasis is placed on direct negotiations with the responsible party to identify restoration/enhancement projects as alternatives to paying damages, and on developing capabilities to manage recovered damages and assessment costs through a new revolving fund.


1999 ◽  
Vol 1999 (1) ◽  
pp. 519-525
Author(s):  
David Mora ◽  
Greg Challenger

ABSTRACT Many jurisdictions rely upon compensation formulae for environmental damages caused by oil spills in lieu of protracted in situ studies. Formulae often rely on quantity and physical properties of the oil. The State of Washington Natural Resource Damage Assessment (NRDA) compensation schedule is primarily based on quantity spilled. The quantity spilled is multiplied by relative values or scaling factors related to general environmental effect and habitat vulnerability indices. Using the formula, a range of $l–$50 dollars per gallon is possible. Spill volume estimation is therefore an important and sometimes controversial issue, especially when spilled volumes are not quantifiable by conventional volumetric methods. While methods of estimating spilled oil from recovery equipment, on the water, and along the shoreline are available, quantifying oil that may be bound to items in the waste stream presents many challenges and must address difficulties such as evaporative oil loss, water bound to recovered materials, varied types of absorbent materials and oiled debris among others. Attempts to quantify recovered oil from the M/V Nosac Forest (1993), Tosco Ferndale (1997), and M/V Anadyr (1998) oil spills yielded reasonable but uncertain results. Questions remain with respect to the accuracy of oil recovery estimates and the cost-effectiveness of the approach. Utilizing assumptions is necessary in any oil volume estimation technique and can be the basis for contention. However, utilizing a collaborative investigative process, where both state and responsible party investigators participate, can alleviate many potential concerns. While uncertainty remains, a collaborative process can lead to consensus and a cost-effective approach to spilled-oil estimation techniques in the absence of conventional volumetric methods.


2021 ◽  
Vol 132 ◽  
pp. 108331
Author(s):  
Batnyambuu Dashpurev ◽  
Karsten Wesche ◽  
Yun Jäschke ◽  
Khurelpurev Oyundelger ◽  
Thanh Noi Phan ◽  
...  

Author(s):  
Nathalie Pettorelli

This chapter explores how satellite-based approaches can be used as a cost-effective method to support monitoring efforts of protected areas, offering a cheap, verifiable way to identify areas of concern at a global scale, and to support managers in their effort to design and apply adaptive management strategies. Because protected areas can differ in terms of management needs and landscape/seascape access, the chapter starts with a quick introduction to categories of protected areas. Where to set new protected areas is one of the key questions faced by decision makers in need of meeting current biodiversity targets, and the second part of this work explores how satellite remote sensing can inform such a choice. Climatic conditions can significantly impact protected areas’ biodiversity, and the third section of this chapter briefly assesses common ways to derive information about local climatic anomalies from satellite data. The last sections of this chapter discuss the use of satellite data to assess effectiveness, and introduce the Digital Observatory of Protected Areas.


2007 ◽  
Vol 88 ◽  
pp. S379
Author(s):  
J.P. Alukal ◽  
B.B. Najari ◽  
L. Murthy ◽  
O. Mohamed ◽  
L.I. Lipshultz ◽  
...  

The choice of cost-effective method of anticorrosive protection of steel structures is an urgent and time consuming task, considering the significant number of protection ways, differing from each other in the complex of technological, physical, chemical and economic characteristics. To reduce the complexity of solving this problem, the author proposes a computational tool that can be considered as a subsystem of computer-aided design and used at the stage of variant and detailed design of steel structures. As a criterion of the effectiveness of the anti-corrosion protection method, the cost of the protective coating during the service life is accepted. The analysis of existing methods of steel protection against corrosion is performed, the possibility of their use for the protection of the most common steel structures is established, as well as the estimated period of effective operation of the coating. The developed computational tool makes it possible to choose the best method of protection of steel structures against corrosion, taking into account the operating conditions of the protected structure and the possibility of using a protective coating.


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