Documents about Spatial Scales

  • 38 Pages


    East Los Angeles College, GEOG 5891

    Excerpt: ... is it? Analyse data and look for correlations, patterns ? think about processes Preliminary method, Horton 1945 stream laws Good for data rich projects Beto Quesada Controls of rainforest productivity Found correlations between variables This used as the basis for further investigation 0.6 Example: SB P Biochang pH CN Biomass turnover QUESADA WP MgC wd SAND Alsat -0.6 -0.6 0.6 A few words about scale 3. We can map scales Large time scales Small spatial scales Large time scales Large spatial scales Time Small time scales Small spatial scales Small time scales Large spatial scales Space 3. We can map scales Large time scales Small spatial scales Large time scales Large spatial scales Activity groups ~ 4 Time 5 minutes think of 1 type of geomorphological research that fits in each quadrant Small time scales Small spatial scales Small time scales Large spatial scales Space 3. We can map scales Large time scales Small spatial scales Large ti ...

  • 24 Pages

    FOR565 Lecture 3

    Wisconsin, FOR 565

    Excerpt: ... Scale and Hierarch Theory Lecture 3 January 25, 2005 Scale "The problem of pattern and scale is the central problem in ecology, unifying population biology and ecosystems science, and marrying basic and applied ecology. Applied challenges . require the interfacing of phenomena that occur on very different scales of space, time, and ecological organization. Furthermore, there is no single natural scale at which ecological phenomena should be studied; systems generally show characteristic variability on a range of spatial, temporal, and organizational scales." Simon Levin 1992 Landscape Ecology has endeavored to develop tools and theories for resolving the scale conundrum. Temporal and Spatial Scales in Ecology Different patterns may emerge at differing scales of investigation of almost every aspect of every ecological system. Early example were speciesarea curves, which showed that nonlinear patterns existed, and that study area size must be accounted for when interpreting results of studies ...

  • 10 Pages


    Maryland, PLSC 471

    Excerpt: ... time. For example in the BOREAS project, scientists looked at ecosystem gas fluxes and carbon balance/budgets in various ecosystems within the boreal region (vertical component) AND integrated the various forest types across the biome. They included hydrology water flow across systems, nutrient cycling on a larger scale, N and C budgets, - each small stand or "ecosystem" is affected by another ("everything is hitched together") and the horizontal flow of water, nutrients, carbon, etc. between components of the large landscape ecosystem. Thus the work was across spatial scales Changes occur due to soil type, drainage, elevation, aspect, slope, etc. Changes may be rather abrupt but generally occur along a continuum leaving "mixed" or transition regions often called ECOTOMES Fig 1.6 shows a typical horizontal continuum in the boreal region of Canada and Fig. 1.7 shows a similar horizontal look at forests in southern Michigan These topics broadly define how we may look at forests, what they are and how they wo ...

  • 1 Pages


    Washington, ESS 431

    Excerpt: ... Assigned: Thurs, Sept. 27, 2007 Due: Thurs, Oct. 4, 2007 (1 week from date assigned) 1. Identify 3 changes that have occurred or are occurring in the cryosphere. 2. Write a paragraph about one of those changes. Be sure to identify which component or ...

  • 3 Pages


    University of Illinois, Urbana Champaign, CHP 395

    Excerpt: ... Integrated Science Conceptual Approach Big Picture Relevance Question: Central Working Hypothesis: Pattern (largest emergent organization) Spatial Scale Pattern Processes (link Mechanism to Pattern) (intermediate organization) Spatial Scale Proc ...

  • 12 Pages


    Colorado, GEOG 4430

    Excerpt: ... Ecosystems (2007) 10: 797808 DOI: 10.1007/s10021-007-9057-4 Interactions Across Spatial Scales among Forest Dieback, Fire, and Erosion in Northern New Mexico Landscapes Craig D. Allen* US Geological Survey, Jemez Mountains Field Station, Los Alamos, New Mexico 87544, USA ABSTRACT Ecosystem patterns and disturbance processes at one spatial scale often interact with processes at another scale, and the result of such cross-scale interactions can be nonlinear dynamics with thresholds. Examples of cross-scale pattern-process relationships and interactions among forest dieback, re, and erosion are illustrated from northern New Mexico (USA) landscapes, where long-term studies have recently documented all of these disturbance processes. For example, environmental stress, operating on individual trees, can cause tree death that is amplied by insect mortality agents to propagate to patch and then landscape or even regional-scale forest dieback. Severe drought and unusual warmth in the southwestern USA since ...

  • 10 Pages


    N.C. State, MEA 444

    Excerpt: ... CLASS: MLK Jr. holiday basic forecast process and briefing overview; Dr. P briefs in-class lab exercise; Dr. P briefs NO CLASS Q&A on lab with Ben, finish lab in class; Dr. P out of town regular class; student briefings begin regular class; student briefing in-class lab; student briefing This is a class about phenomena and processes viewed through the lens of dynamical understanding applied to analysis and forecasting The primary emphasis is on the mesoscale. Lower troposphere Middle-upper troposphere Temporal and spatial scales of atmospheric phenomena Orlanski's definition of scales for atmospheric motion Definitions of scales from various historical authors Kinetic energy as a function of scale (Vinnichenko) This class: Atmospheric phenomena sorted in terms of Rossby number Much of what we call "the weather" actually has mesoscale structure "synoptic UVVs" "mesoscale radar structures" ...

  • 3 Pages

    Things to review for the midterm and sample que...

    UCSC, BIO 161

    Excerpt: ... geographically is Macrocystis found? c) What limits the distribution and abundance of Macrocystis? i. Biological factors ii. Physical factors 13) Explain what questions can be addressed by sampling fish populations and assemblages at each of these three spatial scales : a. Inside MPAs only b. Inside and outside a single MPA c. Inside and outside several MPAs 14) What criteria would you consider when designing a study to evaluate the effects of an MPA by comparing fish populations and assemblages inside and outside of one or more MPAs? 15) Describe three potential applications of MPAs to the management of fisheries. 16) Describe (1) differences in the geologic structure of rocky reefs north and south of Monterey Bay and (2) possible influences on the biota associated with these reefs. 17) Give four examples of invertebrate species that contribute to the physical structure of kelp forest habitat. 18) Give four examples of each of the following three attributes of an ecosystem, (1) structure, (2) function, (3) s ...