Part 2 Site Description: We will be working with data from two weather stations
ID: 294784 • Letter: P
Question
Part 2 Site Description: We will be working with data from two weather stations in Richmond. Station #1 in Central Park (40.78238°N,-73.96586" ?)is representative ofNew York City's urban environment (Figure 1, left panel). Station #2 is in the nearby suburb of Greenwich, CT. (41.02575°N,-73.62923 E) and is representative of the rural environment outside of the city (Figure 1, right panel). Figure 1: New York City (left) (a) and Greenwich, CT (right). After viewing the site photos, open Google Earth and type each station's coordinates into the Fly To area. Take special note of the land useland cover in the vicinity of each station and consider how each station's surroundings will affect local temperatures. 1. What features near Central Park do you see that will contribute to the urban heat island effect? It may be helpful to contrast this area with the site at Greenwich, CT. IF 2. Greenwich is in more a rural area and does not contain features that will contribute to the urban heat island effect. However, you will notice that the image on Google Earth looks distorted. Why? (ie., what is different about the remotely sensed imagery in this area compared to adjacent areas further west?) Hint, think about how the imagery may have been collected, its intended purpose(s) and resolutionExplanation / Answer
When we observe both photos , we will find that there is vast variation in the distribution of land.
here temperature will be different at both places and factors responsible for it are.,
land, location - rural/urban, location from the sea, winds, ocean currents etc.
Spcifically, for these locations you will find that they are not far from each other and both are near to ocean, also both are away from equator hence only in summer when the rays are on tropic of cancer then temperature will be higher. The type of ocean currents which are effective in both the locations are warm currents.
Now by concentrating only on the photos then,New york is covered mostly by land from all sides, whereas greenwich is near to coast.
first of all, I'll take land factor,
the land heats fast and cools fast , which depict that in day time the temperature will be higher and night time it will be low. but if we see coastal part it will be warm or we can say it will be constant because in day time the coastal part heats up and it is balanced by heat release by sea at night.( sea heats slowly and cools slowly)
location-rural/urban factor,
in urban areas the road, bridges, buildings are all made up concrete which absorb the heat and release it slowly so we can predict that in urban areas, the temperature will be higher than rural area.
locations from the sea, if you know about the effect sea breeze and land breeze then yes it is right
compared to sea, land heats up faster and cool faster and hence at land the air become light and rises upward giving rise to low pressure area whereas at sea, the air stay cool and hence denser giving rise to high pressure area. now the wind always blow from high pressure to low pressure that's why at day time the wind blows from sea to land it is called as sea breeze.
now at night time land will be cooler and sea will be warmer and it will result into wind blows from land to sea called as land breeze .
1) By observing the new York city photo, there are buldings, roads and scarce vegetation which contribute in urban heat island effect and at greenwich city, buildings are less, roads are not seen because of dense vegetation which definidefi makes it cool always and hence there is no heat island effect present at greenwich.
2) In aerial photography, the resolution is more important because it changes the look of map.
now higher the resolution increases the quality of photo but it is only applicable for surveying the large area by using satellite imagery.
Lower the resolution will make object easily identifiable but it is applicable only in the local or city surveying.