Isopleths


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to Isopleths: isohyet, isoclinic lines

Isopleths

 

isograms on a graph, where values differing from the geographic coordinates are laid off along one or both coordinate axes. Topoisopleths and chronoisopleths are distinguished. Topoisopleths are plotted in profile with the distance from acertain point laid off on the x-axis and the height or depth, on the Y-axis. In this way it is possible to depict the distribution (for a certain moment or averaged over time) of moisture in soils, salinity and temperature of bodies of water, different characteristics of the atmosphere, and so on. Chronoisopleths are plotted on a graph with the following coordinates: time and height (depth, see Figure 1) or time and geographic latitude. In this way the changes with time (for certain elevations, depths, or latitudes) of the same factors are depicted. Chronoisopleths are also used to show changes in elements of the radiation balance, length of the day, and so on along the meridian.

Figure 1. Chronoisopleths of soil temperature as a function of time of year (months) and depth

Mentioned in ?
References in periodicals archive ?
Contours denote EF0 (white), EFI (black), EF2 (green), and EF3 (red) damage intensity isopleths.
AN INTEGRATED DAMAGE, VISUAL, AND RADAR ANALYSIS OF THE 2015 FOSHAN, GUANGDONG, EF3 TORNADO IN CHINA PRODUCED BY THE LANDFALLING TYPHOON MUJIGAE (2015): Damage- and visually derived tornado features, radar-derived tornado signatures, and their juxtapositions are revealed in a tropical cyclone-associated enhanced Fujita 3 (EF3) tornado
Grey shading shows compositional range in H; red lines are isopleths.
Forensic igneous petrology: Locating the source quarry for the "black granite" Titanic headstones in Halifax, Nova Scotia, Canada
The results are interesting, firstly because garnet isopleths fall in the stability field of modelledmineral assemblages which are also observed under the microscope.
Pseudosection-derived P-T estimates for Saidu, Kashala, Marghazar and Manglaur formations, Swat area, NW Himalayas
The photochemical model used is the OZIPR model (Ozone Isopleth Plotting Program Research) (Gery and Crouse, 1990), which is a column or box model developed by the EPA (Environmental Protection Agency).
Un sistema de modelizacion simple para predecir las concentraciones de ozono troposferico
The main results of the calculations are data models of the deposit such as isopleths and 3D drawings of mining conditions like seam thickness, seam depth, calorific value of oil shale and oil yield.
Estonian oil shale resources calculated by GIS method
Figure 1 also shows isopleths, indicating areas of same exposure concentrations.
An exposure assessment of [PM.sub.10] from a major highway interchange: are children in nearby schools at risk? (Features)
These isopleths are usually shown on maps as fixed lines which do not indicate any uncertainty in the forecast.
Image restoration through subimages and confidence images
In contrast, the T*DNA isopleths exhibit greater nonlinearity, reflecting the strong UV-B influence associated with ozone depletion.
Control of biological exposure to UV radiation in the Arctic Ocean: comparison of the roles of ozone and riverine dissolved organic matter
Plotting isopleths of Pinus growth as a function of both WSI and light and overlaying composition of plots at their mean WSI and light values indicated that communities dominated by Liquidambar had the greatest effect on Pinus growth through reduction in light, while pure Andropogon communities reduced Pinus growth by increasing Pinus water stress; in mixed communities Pinus growth was constrained more equally by both light and water stress.
Competition among secondary-successional pine communities: a field study of effects and responses
Question 9 asks how we might eliminate Map 3 by adding its isopleths to Map 1 -- without using dashed lines.
A layout workshop
Isopleths use lines to join points with the same quantity or value (e.
A classification of visual representations
Precipitation and air temperature were averaged over each region based upon the isopleths of normal values presented in Larkin and Bomar (1983).
A water budget for the state of Texas with climatological forcing

Encyclopedia browser ?
Full browser ?