In what way is a cross section of a tree trunk a record of climatic conditions?
822853
The larger the distance between the rings, the better the climate (sun & rain) there was that year.  Hope it helps.
825658
the latitude generally has a lot to do with the climate which in turn effects the biome
390481
One thing to keep in mind when counting the rings in a cross section of the trunk is that each ring represents one year of growth. As climatic changes year to year affect the growth rate, some rings may be very close to each other and some may be seperated by 10 Mm or more. Too, trees tend, like humans, to grow more when they are younger and slow that growth to stoppage by maturity. This affects the spacing of the growth rings, as well.
98940
Depends on where it is - temperature, humidity, insects, whether it is open to air, etc.
661859
try this\n\nhttp://en.wikipedia.org/wiki/Climate_of_India
570780
What you want to do is best done by a science called Dendrochronology:\n \nology: the study of \nchronos: time, or more specifically events in past time \ndendros: using trees, or more specifically the growth rings of trees \n\nApplications in dendrochronology include: \necology: insect outbreaks, forest stand structure, past fires\nclimatology: past droughts or cold periods \ngeology: past earthquakes, volcanic eruptions \nanthropology: past construction, habitation, and abandonment of societies\n\nGo to the site in the url and you can learn a lot of real information, not media hype about global warming.\n\nPS. The thermometer was only invented a few hundred years ago. No record of temperatures older than that exists. But old wood lasts for thousands of years and is a true account of local conditions. \n\nEnjoy! It is a fascinating science.
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Definitions of climate on the Web:\n\nthe weather in some location averaged over some long period of time; "the dank climate of southern Wales"; "plants from a cold clime travel best in winter" \nthe prevailing psychological state; "the climate of opinion"; "the national mood had changed radically since the last election" \nwordnet.princeton.edu/perl/webwn\n\nThe climate (ancient Greek: κλίμα) is the weather averaged over a long period of time. A descriptive saying is that "climate is what you expect, weather is what you get." The Intergovernmental Panel on Climate Change (IPCC) glossary definition is: The exact boundaries of what is climate and what is weather are not well defined and depend on the application. For example, in some senses an individual El Niño event could be considered climate; in others, as weather. \nen.wikipedia.org/wiki/Climate\n\nThe average weather, usually taken over a 30 year time period, for a particular region and time period. Climate is not the same as weather, but rather, it is the average pattern of weather for a particular region. Weather describes the short-term state of the atmosphere. Climatic elements include precipitation, temperature, humidity, sunshine, wind velocity, phenomena such as fog, frost, and hail-storms, and other measures of the weather.\nweather.ncbuy.com/glossary.html\n\nThis entry includes a brief description of typical weather regimes throughout the year.\nwww.wifak.uni-wuerzburg.de/fact98/notes.html\n\nThe meteorological elements, including temperature, precipitation, and wind, that characterize the general conditions of the atmosphere over a period of time at any one place or region of the Earth's surface. Earth has three climate zones: Polar, Temperate and Tropical. Climate zones are further classified into ecosystems and biomes.\nwww.apsu.edu/wet/whatis.html\n\naverage meteorological conditions in a certain area over a certain period.\nwww.tsgc.utexas.edu/stars/metgloss.html\n\nthe average course or condition of the weather at a place usually over a period of years as exhibited by temperature, wind velocity, and precipitation.\nwww.doe.mass.edu/frameworks/scitech/2001/resources/glossary.html\n\nThe average condition of the weather in a garden room or outdoors.\nwww.interiorgardens.com/glossary/glossary.html\n\nThe usual pattern of weather in a particular place\nwww.rcn27.dial.pipex.com/cloudsrus/glossary.html\n\nthe composite or generally prevailing weather conditions of a region throughout the year, averaged over a series of years.\nwww.pnl.gov/atmos_sciences/Cdw/Glossary.html\n\nThe prevailing or typical meteorological conditions and extremes of any place or region.\nwww.gozoweather.com/glossary.shtml\n\nThe characteristic pattern of weather elements in an area over a period of time (usually average of 30 years). The weather elements include, among others, temperature, rainfall, humidity, solar, insolation, and wind. Climate is controlled by the following factors: latitude (incoming solar radiation), distribution of land and water masses, altitude and topography, location of area in relation to ocean currents (Martin et al, 2000).\nwww.med.uwo.ca/ecosystemhealth/education/glossary.htm\n\nThe historical record of average daily and seasonal weather events.\nggweather.com/glossary.htm\n\nlong-term pattern of weather that characterizes a region.\nmrskingsbioweb.com/Eglossary.html\n\nThe slowly varying aspects of the atmosphere–hydrosphere–land surface system. It is typically characterized in terms of suitable averages of the climate system over periods of a month or more, taking into consideration the variability in time of these averaged quantities. Climatic classifications include the spatial variation of these time-averaged variables. ...\namsglossary.allenpress.com/glossary/browse\n\nThe meteorological conditions, including temperature, precipitation, and wind, that characteristically prevail in a particu
425880
Assessing the age of a living tree is straightforward enough -- just extract a core from the tree's circular trunk and count the number of lines in the core formed by the tree's annual growth rings. (The rings of ancient bristlecone pines like Methuselah are more challenging to count, because the trunks are so distorted that new rings may form at right angles to ones formed long before.) But there's much more information to be gleaned from growth rings than simply a tree's age. This information comes to us through the science of dendrochronology.
719759
Definitely over Panama. The amount of moisture the air can hold has a strong (exponential) dependence on temperature.\nTherefore, on cold weather it holds much less moisture before it condensates.
603130
Read the article below and you start to understand how variable earth's climate has been and more than likely will continue being.\n\n\n\n\n\n\nClimatologists have used various techniques and evidence to reconstruct a history of the Earth's past climate. From this data they have found that during most of the Earth's history global temperatures were probably 8 to 15° Celsius warmer than today. In the last billion years of climatic history, warmer conditions were broken by glacial periods starting at 925, 800, 680, 450, 330, and 2 million years before present.\n\nThe period from 2,000,000 - 14,000 B.P. (before present) is known as the Pleistocene or Ice Age. During this period, large glacial ice sheets covered much of North America, Europe, and Asia for extended periods of time. The extent of the glacier ice during the Pleistocene was not static. The Pleistocene had periods when the glacier retreated (interglacial) because of warmer temperatures and advanced because of colder temperatures (glacial). During the coldest periods of the Ice Age, average global temperatures were probably 4 - 5° Celsius colder than they are today.\n\nThe most recent glacial retreat is still going on. We call the temporal period of this retreat the Holocene epoch. This warming of the Earth and subsequent glacial retreat began about 14,000 years ago (12,000 BC). The warming was shortly interrupted by a sudden cooling, known as the Younger-Dryas, at about 10,000 - 8500 BC. Scientists speculate that this cooling may have been caused by the release of fresh water trapped behind ice on North America into the North Atlantic Ocean. The release altered vertical currents in the ocean which exchange heat energy with the atmosphere. The warming resumed by 8500 BC. By 5000 to 3000 BC average global temperatures reached their maximum level during the Holocene and were 1 to 2° Celsius warmer than they are today. Climatologists call this period the Climatic Optimum. During the climatic optimum many of the Earth's great ancient civilizations began and flourished. In Africa, the Nile River had three times its present volume, indicating a much larger tropical region.\n\nFrom 3000 to 2000 BC a cooling trend occurred. This cooling caused large drops in sea-level and the emergence of many islands (Bahamas) and coastal areas that are still above sea-level today. A short warming trend took place from 2000 to 1500 BC, followed once again by colder conditions. Colder temperatures from 1500 - 750 BC caused renewed ice growth in continental glaciers and alpine glaciers, and a sea-level drop of between 2 to 3 meters below present day levels.\n\nThe period from 750 BC - 900 AD saw warming up to 150 BC. Temperatures, however, did not get as warm as the Climatic Optimum. During the time of Roman Empire (150 BC - 300 AD) a cooling began that lasted until about 900 AD. At its height, the cooling caused the Nile River (829 AD) and the Black Sea (800-801 AD) to freeze.\n\nThe period 900 - 1200 AD has been called the Little Climatic Optimum. It represents the warmest climate since the Climatic Optimum. During this period, the Vikings established settlements on Greenland and Iceland. The snow line in the Rocky Mountains was about 370 meters above current levels. A period of cool and more extreme weather followed the Little Climatic Optimum. A great drought in the American southwest occurred between 1276 and 1299. There are records of floods, great droughts and extreme seasonal climate fluctuations up to the 1400s.\n\nFrom 1550 to 1850 AD global temperatures were at their coldest since the beginning of the Holocene. Scientists call this period the Little Ice Age. During the Little Ice Age, the average annual temperature of the Northern Hemisphere was about 1.0 degree Celsius lower than today. During the period 1580 to 1600, the western United States experienced one of its longest and most severe droughts in the last 500 years. Cold weather in Iceland from 1753 and 1759 c
61737
Weather.com is a really good site(I use it too)\n\nWeather is an all-encompassing term used to describe all of the many and varied phenomena that can occur in the atmosphere of a planet. The term is normally taken to mean the activity of these phenomena over short periods of time, usually no more than a few days in length. Average atmospheric conditions over significantly longer periods are known as climate. Usage of the two terms often overlaps and the concepts are obviously very closely related.\n\nWeather is driven by the different amounts of energy received from the Sun on different parts of the planet. Because of a planet's curvature, sunlight is incident at different angles at different latitudes (higher latitude -> lower angle of incidence -> less heating). Different types of surface (e.g. ocean, forest, ice) have different properties of reflectivity (albedo) and absorb differing amounts of energy. It is mainly due to these two factors that the surface is heated to different extents.\n\nThese surface temperature differences cause vertical wind currents as the hot surface heats the air directly above it. This hot air expands and rises lowering the air pressure and drawing colder air into its place, which is in turn heated and rises and so on. When the hot air later cools it shrinks and sinks lower, increasing air pressure and displacing the air already below it. Horizontal wind currents are formed at the boundaries between differentially heated areas and can be exacerbated by the presence of sloped surfaces. The simple systems thus formed can then display emergent behaviour to produce more complex systems and thus all other weather phenomena. A large scale example of this process can be seen in the Hadley cell and other forms of atmospheric circulation, a smaller scale example would be coastal breezes.\n\nThe only two fundamental causes of weather are thus surface temperature, and to a lesser extent, elevation.\n\nAny precession in a planet's orbit will affect the amount of energy received at a particular spot throughout the year. This effect causes seasons and may influence long term weather patterns.
768542
Broad leaves are a common feature in tropical or benign climates where  sunlight and water is plentifull.  Needles are a common feature in extreme climates be it because water is scarse, like in desertic, rocky regions where cactus are common or in places where there is ice and frost and weak sunlight  like Canada.  There are of course other additional adaptations to particular climates but that would be part of a different question.
876299
It is not a type of tree that produces what you are looking for.  It is a process of converting the wood/pulp to papper and layering it with layers of plastic to give it those properties.
225500
On a philosophical level.... I would say it's a natural balance derived from natural occurrences. There are many different forms of weather, but the natural capability of movement shifts in many rotations causing a range of wind that forces climate change and therefore causing dramatic changes and patterns. on more of a documented scientific note I would say:The blanket of air that covers the earth is called\n\n  the atmosphere. The bottom layer of the atmosphere is \n\n  called the troposphere. The troposphere is where all of \n\n  earth’s weather happens. Basically, our weather is \n\n  caused by two things: the sun and moisture in the air.\n\n  These two things together can form clouds, can make rain\n\n  and form thunderstorms, and cause winds to blow. Without\n\n  the sun and moisture in the air, our earth would have no \n\n  weather at all. In fact, there would be no people on our plantet\n\n  \n             Another thing that helps to cause the earths \n\n   Weather is air masses. When two air masses come \n\n   Together, the line between them is called a front. Along a\n\n   Front there is usually clouds, rain, and maybe thunderstorms.\n\n   The movement of air masses helps to cause weather \n\n   almost  as much as the sun and moisture in the air. Without\n\n   air masses, all the earth’s weather would stay in one place
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In geography, temperate latitudes of the globe lie between the tropics and the polar circles. The changes in these regions between summer and winter are generally subtle, warm or cool, rather than extreme, burning hot or freezing cold. However, a temperate climate can have very unpredictable weather. One day it may be sunny, the next it may be raining, and after that it may be cloudy. These erratic weather patterns occur in summer as well as winter.\n\nThe north temperate zone extends from the Tropic of Cancer at about 23.5 degrees north latitude to the Arctic Circle at about 66.5 degrees north latitude. The south temperate zone extends from the Tropic of Capricorn at about 23.5 degrees south latitude to the Antarctic Circle at about 66.5 degrees south latitude.\n\nWithin these borders there are many individual climate types, which are generally grouped into two categories: continental and maritime.\n\nThe maritime climate is clearly affected by the oceans, which help to sustain somewhat stable temperatures throughout the year. In the temperate zones, the prevailing winds are to the west, the western edge of temperate continents most commonly experience this maritime climate. Such regions include Western Europe, especially the UK, and western North America at latitudes between 40° and 60° north (65°N in Europe).\n\nThe continental climate is usually situated inland, with warmer summers and colder winters. The large land mass increases its effects on heat reception and loss. In North America, the Rocky Mountains act as a climate barrier to the maritime air blowing from the west, creating a continental climate to the east. In Europe, the maritime climate is able to stabilize temperatures further inland, because the major mountain range - the Alps - is oriented east-west.
229052
At that latitude (dist from equator) Air tends to descend instead of rise (and create rain) like in the tropics.  Look at all land around that dist from the equator.  Mostly dry if it is not coastal.
1044977
Climate is the weather for a specific place over a certain amount of time and weather is what is happening outside right now.