'Annual layers' presentation slideshows

Sources of information on climate

757 views • 66 slides

Chapter 10 Population Dynamics (Understanding How Populations Work)

Chapter 10 Population Dynamics (Understanding How Populations Work). Chapter 10 Population Dynamics (Understanding How Populations Work). What Processes Determine Current Population Size?. Population size in earlier time period (N t-1 ) Number of births (B) Number of deaths (D)

836 views • 45 slides

Climate Variability on Millennial Time Scales

Climate Variability on Millennial Time Scales. Introduction Dansgaard-Oeschger events Heinrich events Younger Dryas event Deglacial meltwater Meridional overturning circulation. Introduction.

962 views • 44 slides

Climate Changes

Climate Changes. Past and Future. Defining Climate Change. Response of Earth-atmosphere system to changes in boundary conditions What external factors might drive changes in climate? Intensity of sunlight Arrangement of continents and oceans Composition of atmosphere.

437 views • 27 slides

Determining Absolute Age

Determining Absolute Age. Chapter 8.2. Absolute Dating Methods. Rates of Erosion Scientists can estimate age based on a rate of erosion Practical only for geologic features that formed 10,000 to 20,000 years ago. Ex. Niagara Falls (eroding at a rate of about 1.3 m per year).

275 views • 9 slides