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Now, could it be that by looking East and by standing on their roof and looking west they would have a better chance of seeing the firework display?

By Mike on 25th January I'd to calculate the distance between 2 points on the planet by knowing only the geografical coordinates. On 30th December Showing the most recent 20 out of comments. Click to see all the comments. Comments Your Name optional Post. Better results and improved feedback when there are no results found. Maps you can make use of On 25th November I loved it On 15th November bad bad By lily on 29th October What year is the population data representing?

On 28th October How do I get this map On 26th October This is a great tool On 12th October How to know aerial distance between two points by latlong On 5th August How to check aerial distance between two GR On 5th August Hello I noticed early this morning that my saved links from drawing lines on Freemap tools have all been wiped out.

By Steve Chong on 7th July Does anyone know if there is source like this can tell me how far I am at given time to the nearest freeway onramp? See the Atlas publications page for a list of documents related to the development and use of this model. The model inputs are pre-defined by the researchers, so no user-collected data is required. For the Tree Atlas, these defined inputs include data on current tree species distributions from the Forest Inventory and Analysis FIA program, as well as datasets that fall under categories of: climate, elevation, and soil characteristics.

A full list of model inputs can be found on the Tree Atlas site. Atlas outputs primarily include spatial and numerical representations of current and future suitable habitat.

Measurements of suitable habitat distribution and change are given in importance value e. Importance value is a measure of abundance that accounts for both tree basal area and number of stems, ranging from 0 - It is also important to note that there are several uncertainties inherent in this type of species distribution model. For example, there is a considerable range in projected future climate conditions depending on which climate model is used and which emissions scenario is chosen to represent future conditions.

The Atlas deals with this by providing projected suitable habitats for a range of different climate models and emissions scenarios, and by averaging the projected suitable habitat under each emission scenario.

In addition, the model predicts suitable habitat better for some species than for others. A reliability index is included in the Atlas to reflect this. The reliability scores are based on the statistical techniques used to create the model, but also accounts for how good the predictor variables are at describing where species are located. Projections for species with low reliability scores should be interpreted with caution. Finally, the model is only predicting where suitable habitat may be in the future.

It cannot predict where species themselves will be located, since that depends on factors such as species migrations, land use changes, biological factors e. Therefore, colonization likelihoods and adaptability ratings should be evaluated to help interpret the potential changes in suitable habitat. Peters, M. Climate change tree atlas, Version 4. It is also recommended that the following publications be cited along with the atlas citation, depending on what you used:.

San Francisco Bay Area. Greater Houston. Greater Detroit. Washington, DC Metro. Tree Equity Score A map of tree cover in any city in the United States is too often a map of race and income. Population density.

Surface temperature. These metrics are combined into a single score between 0 and A score of means that a neighborhood has achieved Tree Equity. To learn more, visit our methodology page.