scholarly journals COASTAL ENGINEERING APPLICATIONS OF AERIAL REMOTE SENSING

1972 ◽  
Vol 1 (13) ◽  
pp. 112
Author(s):  
Donald B. Stafford
Keyword(s):  
Remote Sensing ◽  
State Of The Art ◽  
Coastal Engineering ◽  
Aerial Photographs ◽  
Black And White ◽  
Remote Sensors ◽  
Engineering Studies ◽  
Radar Imagery ◽  
Aerial Remote Sensing ◽  
Remote Sensing Techniques

aerial remote sensing techniques and provides a current state of the art summary of the utilization of aerial remote sensors in coastal engineering studies. The sensors' discussed include conventional black and white aerial photographs, black and white infrared aerial photographs, color and color infrared aerial photographs, multispectral aerial photographs, satellite photographs, infrared imagery, multispectral imagery, and radar imagery. The field of coastal engineering is considered in a broad context to include all important applications of aerial remote sensing that relate to coastal engineering problems. The use of remote sensors to monitor coastal changes, study coastal landforms, examine storm effects, map coastal areas, determine nearshore hydrography, and monitor the environmental effects of coastal engineering projects, a topic of considerable current concern, is described. The important characteristics of the various aerial remote sensors are described briefly. The advantages and limitations of the aerial remote sensing techniques for different coastal engineering studies are noted. The review and state of the art summary of the applications of the aerial remote sensors can be used by coastal engineers as guidelines in employing the sensors in future coastal engineering investigations.

Current Use of Remote Sensing by Foresters in the South

1980 ◽  
Vol 4 (3) ◽  
pp. 143-147
Author(s):  
Roy A. Mead ◽  
D. Ann Rasberry
Keyword(s):  
Remote Sensing ◽  
Aerial Photographs ◽  
Practical Training ◽  
Full Time ◽  
Infrared Photography ◽  
Black And White ◽  
Southern States ◽  
Resource Managers ◽  
Time Basis ◽  
Remote Sensing Techniques

Abstract A survey was conducted to determine how and to what extent remote sensing is being used for forest management in the 13 southern states. Several general conclusions were reached. Timber type mapping and road location are the major uses of aerial photographs. Professional resource managers spend a small portion of their time interpreting aerial photographs and very few photo interpreters are employed on a full-time basis. Significant differences were apparent in the use of aerial photographs by different organizations. Black-and-white photographs are most frequently used. Color and color infrared photography were utilized by all organizations to a limited extent, but Landsat, radar, and thermal imagery were generally not used. Very little use is being made of small-format (35 mm and 70 mm) photography. More applied research and practical training are needed to fully implement remote-sensing techniques in the field of natural resources.

Application of Satellite Remote Sensing Techniques to Quantify Terminus and Ice Mélange Behavior at Helheim Glacier, East Greenland

2014 ◽  
Vol 48 (5) ◽  
pp. 81-91 ◽  
Author(s):  
Steve Foga ◽  
Leigh A. Stearns ◽  
C.J. van der Veen
Keyword(s):  
Remote Sensing ◽  
Sea Ice ◽  
East Greenland ◽  
Object Based Image Analysis ◽  
Glacier Terminus ◽  
Object Based ◽  
Radar Imagery ◽  
Iceberg Calving ◽  
Calving Rate ◽  
Remote Sensing Techniques

AbstractIceberg calving is an efficient mechanism for ice mass loss, and rapidly calving glaciers are often considered to be inherently unstable. However, the physical controls on calving are not well understood. Recent studies hypothesize that the presence of a rigid ice mélange (composed of icebergs, bergy bits, and sea ice) can reduce iceberg calving by providing “backstress” to the terminus. To test this hypothesis we use remote sensing techniques to construct a time series model of calving rate and size and composition of the adjacent ice mélange. We describe a semi-automated routine for expediting the digitization process and illustrate the methods for Helheim Glacier, East Greenland, using 2008 data. Ice velocities of the glacier terminus and ice mélange are derived with feature-tracking software applied to radar imagery, which is successfully tracked year-round. Object-based image analysis (OBIA) is used to inventory icebergs and sea ice within the ice mélange. We find that the model successfully identifies the calving rate and ice mélange response trends associated with seasonal increases in terminus retreat and advance and shows seasonal trends of ice mélange potentially providing seasonal backstress on the glacier terminus.

Remote Sensing Techniques in Civil Engineering Surveys

1986 ◽  
Vol 2 (1) ◽  
pp. 119-124
Author(s):  
E. M. Amos ◽  
D. Blakeway ◽  
C. D. Warren
Keyword(s):  
Remote Sensing ◽  
Satellite Imagery ◽  
Aerial Photography ◽  
Civil Engineering ◽  
Thermal Infrared ◽  
Infrared Photography ◽  
Black And White ◽  
Remote Sensing Techniques ◽  
Landsat Satellite ◽  
False Colour

AbstractThis paper outlines selected remote sensing techniques and their application to civil engineering surveys.In BS 5930, emphasis has been placed on the interpretation of black and white aerial photography to provide information. However, other techniques such as true colour and false colour infrared photography, thermal infrared, radar and landsat satellite imagery may be useful in appropriate applications.

scholarly journals Evaluation of Aerial Remote Sensing Techniques for Vegetation Management in Power-Line Corridors

2010 ◽  
Vol 48 (9) ◽  
pp. 3379-3390 ◽  
Author(s):  
Steven J. Mills ◽  
Marcos P. Gerardo Castro ◽  
Zhengrong Li ◽  
Jinhai Cai ◽  
Ross Hayward ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Vegetation Management ◽  
Power Line ◽  
Aerial Remote Sensing ◽  
Remote Sensing Techniques

Remotely-sensed Data for Natural Resource Models

1986 ◽  
Vol 13 (3) ◽  
pp. 203-210 ◽  
Author(s):  
Jerry C. Ritchie ◽  
Edwin T. Engman
Keyword(s):  
Remote Sensing ◽  
Natural Resource ◽  
Spatial Data ◽  
Model Simulation ◽  
Simulation Models ◽  
Remotely Sensed ◽  
Remotely Sensed Data ◽  
Remote Sensors ◽  
Remote Sensing Techniques ◽  
Spatial And Temporal Characteristics

Attempts to model ecosystems have increased in recent years through the application of systems theory and the improvement in computer capacity and speed. A major problem with these models is providing data for input or validation. A potential source of data is information collected by remote-sensing techniques. Remotely-sensed data can be used in natural resource simulation models to provide spatial and temporal measurements, data for model calibration or validation, and independent feedback to keep the model simulation on track with reality. Remote sensing can provide spatial and temporal measurements of many landscape parameters that could improve our ability to understand and model the spatial and temporal characteristics of landscapes.The challenge for remote-sensing scientists, landscape ecologists, and natural resource modellers, is to determine the most effective way to interpret and use the data from remote sensors in natural resource management. Natural resource models that can fully utilize the spatial data which remote-sensing techniques can provide, will almost certainly improve our understanding of landscapes and our ability to simulate and manage them wisely.

scholarly journals MEASUREMENTS FROM A FAST-MOVING AIR-CUSHION PLATFORM

1986 ◽  
Vol 1 (20) ◽  
pp. 27 ◽  
Author(s):  
P. Kerchkaert ◽  
A. Grobben ◽  
P. De Candt
Keyword(s):  
Remote Sensing ◽  
Fast Moving ◽  
Remote Sensing Data ◽  
Measuring Method ◽  
Coastal Morphology ◽  
Nearshore Area ◽  
Comprehensive Survey ◽  
Air Cushion ◽  
Aerial Remote Sensing ◽  
Remote Sensing Techniques

In 1976 the Belgian Government decided to enlarge the harbour of Zeebrugge and to execute an artificial beach renourishment on the beaches at Knokke-Heist. A comprehensive survey program along the 24 km coastline was conceived using remote sensing techniques. This enabled correct momentary recordings of the beach areas, the production of differential charts and calculations of dune and beach volumes. However, the observations of the nearshore and offshore areas from ordinary survey vessels take too long so that no accurate momentary recordings of the seabottom topography can be achieved. On these grounds, in 1983, the Belgian Authorities have instructed the Eurosense Belfotop Company to develop an effective measuring method based on the use of a hovercraft. This hovercraft platform, named "BEASAC" and designed for hydrographic surveys, is now used for monitoring the coastal morphology and the dredging activities in the access channels to the major Belgian seaports. On the basis of the "Beasac"-soundings of the nearshore area and the aerial remote sensing data of the beach, charts and differential charts of the combined beach and nearshore area are produced. The results of this technique are very promising and will be incorporated in the further survey programs ordered by the Belgian Authorities as a substitute for the classic bathymetric vessel soundings.

Airborne remote sensing for groundwater studies in Prairie environment

1969 ◽  
Vol 6 (4) ◽  
pp. 737-741 ◽  
Author(s):  
M. E. Chase
Keyword(s):  
Remote Sensing ◽  
Soil Moisture ◽  
Surface Water ◽  
Ground Truth ◽  
Infrared Photography ◽  
Black And White ◽  
Remote Sensors ◽  
Infrared Scanning ◽  
Southern Alberta ◽  
Lake Deposits

A deficiency of groundwater in an area of prairieland in southern Alberta prompted a survey by airborne remote sensors. Panchromatic and black and white true infrared photography coverages were obtained and studied, but were found to be of limited value. An infrared scanning survey, using the 2.5–5.6 μ band was flown at the same time and found to be more informative. Conditions of ground truth were not ideal, making the results less conclusive than desired. Till covers most of the area, with lake deposits in the eastern section. Soil moisture changes were registered on the imagery, but the depths of overburden to which these changes were recorded on the surface are unknown, due to the condition variations between the time of the survey and the drilling. Vegetation, surface water, soil moisture, and saline sloughs were found to have the strongest thermal signatures. Problems encountered in the survey are discussed and recommendations to eliminate them are given.

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