Urban Heat Islands

[ciascience00]

I'm trying to do a project about urban heat islands and was following a tutorial here on the website. To do my project, I have to use another website called archgis.com. I followed the instructions and tried to add the separate layers onto the map, just like the tutorial video, but every time I added a new layer, it said that it couldn't load. I was very confused, so I did some digging and found out that you now have to go through a paywall to access the layer(s)! Without those layers, I can't do the project properly. I was even considering paying it, but the website to activate the payments isn't working either, so now I'm stuck.

My science project is due in a week, and I'm really passionate about this subject. Does anyone have any ideas on what I could do? Or what other layers I could access instead?

[amyCC]

Hi - Can you confirm that you are using arcgis, the site linked in step 1 of the project: https://nasa.maps.arcgis.com/home/index.html (You mention that you are using another site - and I'm not sure if that is a typo or if you are using bleep else. That doesn't appear to be a valid site.)

(Project: https://www.sciencebuddies.org/science- ... at-islands)

The project notes certain layers to use with the free account. Were you able to add any of the layers listed in step 3 without running into a problem or a paywall?

Amy
Science Buddies

[ciascience00]

Yes, I am using the arcgis website. I know that its the right one because the layout of the application is the same as the tutorial video.

When I get to step three and add the layers, it says "an error occurred loading this layer." The only layer that does work is the "Imagery Layer Evening Air Temperature in 'City'". I looked into the 'details' section of the layers that didn't load, and they say that only a subscriber can use this layer for their maps, meaning that I have to pay.

I am not sure if I just did the sign-up process wrong or if the website changed over time to not allow the free accounts to use these layers.

Ciara

[ciascience00]

To be more specific, if you click on one of the 'USA NLCD' layers, and scroll down to click 'details', it will say:

'Important Note: This item requires an ArcGIS Online organizational subscription or an ArcGIS Developer account and does not consume credits. To access this item, you'll need to do one of the following:
Sign in with an account that is a member of an organizational subscription
Sign in with a developer account
Register an application and use your application's credentials.
If you don't have an account, you can sign up for a free trial of ArcGIS or a free ArcGIS Developer account.'

I tried to sign up for the developer account with the link that it gave me (the underlined phrases represent the hyperlinks), but it says that the developer dashboard has moved and it's not exactly clear to where I could sign up for that free account. Additionally, when I tried to sign up for the free trial of ArcGIS, it says that the 'trial is temporarily unavailable and is undergoing maintenance'.

[amyCC]

I am sorry you have run into these access issues. It appears that the interface (as well as what you can do with a free account) may have changed since the project and video were created earlier this year.

One of our volunteers here in the forums has suggested that qGIS, an opensource GIS tool, might be an alternative you could use for this project. It wouldn't match up exactly to the steps shown, of course, but depending on your timing, it might be the best way to stay with your topic.

When is your project due?

Amy
Science Buddies

[amyCC]

If you want to consider trying qGIS, you will need to download and install it:
https://qgis.org/download/

Chapter 5 from the documentation provides a quick overview of installing QGIS, downloading QGIS sample data, and running a first simple session visualizing raster and vector data. https://docs.qgis.org/3.34/en/docs/user ... arted.html

Since even the 21 day trial with the ERSI link seems to be unavailable (I see the same "maintenance" note you saw), shifting to qGIS may be the only option to do this without a paid account.

Amy

[ciascience00]

My project's first draft is due this Friday, but the entire thing won't be due until February, so I might have some luck asking my teacher for an extension.
Nevertheless, thank you very much for your help and the quick replies. I was becoming very stressed. I'm glad that I can still attempt to continue this project with your aid.

I am perfectly fine with switching over to this application as long as it works with no paywalls. I will use the application and try to learn how it works. But by first glance, this application does look complicated, so any online tutorials that you can find would be very appreciated, though not completely needed.

Again, thank you so much for you, and your volunteers'' help. Have a nice day/night.

Ciara

[amyCC]

Hi Ciara - It does seem that qGIS is more complicated to learn to use. Based on your interest -- and the problems now with using the directions in our project -- a scientist here in the forums has been working through the steps to see if this will translate to the free qGIS. It will require additional work on your part, and you will likely be limited to a specific data set as an example for showing how urban heat islands work.

I am mentioning that because using the other setup, you could have selected from other datasets, but they are not necessarily available outside of those tools. (You can search and see what you can find, but it's possible you won't be able to access data for a "location of choice.")

I think we've located data for a VA location that will work. What location were you hoping to use in your project?

You are okay doing this experiment for any location? (I'm just making sure you weren't most interested in doing this for your own location, which might not be possible.)

If what you are turning in this week is an overview of your project or a research paper summarizing background research, etc., then we suggest that you include the problems encountered with the arcgis and esri tools and data sets.

Our scientist suggests you might also review this background information on the Charlottesville VA heat island project.

This is the (gis) data that is the closest to the data (Richmond VA) that was used in the ESRI tutorial -- and is the data set that may work in shifting to the qGIS tool.

https://charlottesville.gov/1469/Urban- ... g-Campaign

We recommend looking at some tutorials for using qGIS - and running through a sample data visualization.

Here are some videos and resources you might consider:

Overview "How to Perform a Simple Spatial Data Analysis using QGIS":
https://www.youtube.com/watch?v=lA4ksrrTNqc

Documentation with link to sample data. We suggest working through these steps to make sure you can open the sample data in QGIS and to familiarize yourself with how this works:
https://docs.qgis.org/3.34/en/docs/user ... arted.html

Video Tutorials

• https://www.youtube.com/watch?v=SovdBaus7pM
• https://www.youtube.com/watch?app=desktop&v=kCnNWyl9qSE
• https://www.youtube.com/watch?v=Eg4_duqH5Q4

The Expert looking into this (because of your immediate project) may take over here with posting. Please let us know what questions you have and if there is anything we can help with in order to complete the initial assignment you have due for the project. (It's great that you started in advance and have a few months for the final projects.)

Amy
Science Buddies

[ciascience00]

My research question that I wanted to explore was: “How do different landscapes located in the United States correlate with a city’s heat output?” The question formulation is still ongoing, so I apologize if the question is invalid or doesn't make sense at the moment, however, my question is mainly based off of how the surrounding environment of a city correlates with its heat output.

But I would be fine doing any location, as long as it is located in the US. I would need more than 1 location though, about 3-5 different ones. I was hoping that these locations would be scattered across the US. For example, Seattle, WA on the West Coast and Charlottesville VA (the city you mentioned) on the east coast. Additionally, it doesn't have to be a popular major urban city, any city will do.

Also, thank you for the tutorials that you've sent. It will take me a while to finish a tutorial for me to get accustomed with QGIS, but I should (hopefully) have a basic understanding of it by tomorrow.

[amyCC]

Ciara - Thank you for clarifying what you had been thinking about exploring. While we are working to determine a path forward with qGIS, we won’t necessarily be able to find datasets for multiple locations. You will likely need to spend time looking for those yourself once you understand what is required. Unfortunately, the data sets that are available in arcgis don’t seem to be publicly available. That doesn’t mean they aren’t out there, but it will involve hunting.


Amy
Science Buddies

[ciascience00]

I understand. I've already found a data set for New York, based on one of the tutorials you've provided, (thank you again), so my mission for now is to gain as much data locations as possible. I've drawn it down towards 4 locations that I wish to explore. So far, I know I will use the Charlottesville, VA data set, and hopefully will find a data set for Las Vegas, NV (or any city in Nevada). I am still deciding where the other 2 locations will be.

[amyCC]

Hi Ciara - I'm glad to hear you are undeterred and already looking at some of the tutorials to familiarize yourself with the tool.

It is great that you have found data for New York that might work. As you look for data on other cities, you will want to try to find cities where you can pull temperature data as well as environmental data.

Our scientist is working with Charlottesville as an example right now for transitioning to qGIS. This site lists cities that participated in the same "Heat Watch" program that Charlottesville did: https://osf.io/9neka/

Given that, the cities listed there should have the temperature data which can be used to identify the heat islands.

(Look at the data available for Charlottesville here https://opendata.charlottesville.org/pa ... ta-shp-cad as an example of what you are hoping to find.)

As you think about the cities you want to explore, you might want to consider cities with differing environments. Just bleep to think about.

We still don't have this fully working either using freely available files. But right now, the scientist working on this still thinks there is a way. I just want to make sure you know that we really don't have a plug-and-play solution yet for the project you were hoping to do. (Since I know you are putting together your preliminary plan to turn in, I would make sure your teacher is aware of the challenges with the tools and data access.) The access changes on those other sites and the difficulty in finding data sets that have not been restricted to those tools are not things we could have predicted.

It sounds like you are interested and willing to work through the issues, and that's awesome!

Amy
Science Buddies

[ciascience00]

The expansion of my current idea is as follows: “To what extent does the surrounding environments’ temperature of a city compare with the city’s heat output?” I was planning to find temperature datasets for the various environments outside of a city, for example, a desert outside of Las Vegas, and compare how much the temperatures vary between the city and its environment using transects. I would then graph the data to visualize how much of a change there is. I've also defined which cities I would like to explore because they all have vastly different environments, (but I am willing to change these choices if the datasets are not available):

-Miami, Florida
-Charlottesville, Virginia
-San Diego, California
-Seattle, Washington
-Chicago, Illinois

As for the available files, I've been able to find some locations with some temperature information from their cities. For now, I've only found the temperature data for the city of Charlottesville, VA. However, I've been having trouble with finding the actual surrounding environment data of a city, and it's own temperatures. I'd figure that I would have to go to a state website to find environmental information like that for the entire state's area, as it should also cover the surrounding environment temps of the city. I will attempt to find more datasets through this bleep, but so far, I could not find any myself.

I've also found a resource but I'm not exactly sure how to apply this source to my QGIS map, nor how to actually use it:
https://wonder.cdc.gov/NASA-NLDAS.html
And the chart that it produces is a bit confusing to read as well.

Also, I'd like to thank you for your active encouragement, I appreciate it very much and it has been extremely helpful towards my science project.

[ciascience00]

quick little update: I changed the California and Illinois cities into: Salt Lake City, Utah and New Orleans, Louisiana, as I believe that they have more distinct climates and environments

[ciascience00]

And I also forgot to mention that those cities I've mentioned is all on one of the sources you've provided, which was https://osf.io/9neka/. So finding the locations was not a problem.

Also to be clearer because I know my wording can be confusing:
I've found the city's temperature datasets, but I am not able to find it's environment temperature datasets. Those are the 2 variables I want to investigate within my project.

[amyCC]

Hi Ciara - The way the original project is written, the idea is that within a single city, there may be urban heat islands because of the surface material and various features (like tree canopy) in that area compared to other areas in the same city.

If you had been doing the project as written (if the tools worked), you would have been looking at one city and at various points within the city. You may want to look through the background information again, but the idea there isn't necessarily that an "entire" city is an urban heat island.

If you decide to scale your project along the lines of one city, then you would be evaluating differences within a city that make some parts hotter (or cooler) than others.

From the project: "Urban heat is not distributed evenly across a city. Neighborhoods in the same city at the same time can differ in temperature by 20°F, due largely to differences in the factors that cause the urban heat island effect. Studies have shown that discriminatory historic policies like redlining have contributed to these differences, with formerly redlined areas being hotter than non-redlined areas in many U.S. cities (Hoffman et al., 2020; Li et al., 2021)."

You may or may not be interested in issues like redlining, but this helps explain how urban islands are typically thought of "within" cities -- as comparative to other parts of the city.

Does that make sense?

Focusing on one city would also help in terms of the data.

For a bit more of a look at this process, you can scroll through this tutorial -- without logging in. You can't do any of the computation or actual steps shown, but reading through this may be helpful in understanding the scope of the project and thinking about your own project.

We suggest reviewing the first of 3 sections in the ESRI tutorial : https://learn.arcgis.com/en/projects/ma ... nd-effect/

Look at the two maps (graphs) in steps "7" (the % tree canopy by census block groups within the city limits of Richmond) and "12" (how the evening temperatures vary across the city). These graphs help demonstrate the urban heat island concept as it plays out in that city.

The tutorial then talks about the steps to show the difference between the max temperature within a census block group versus the overall city max.


Finally, you may find it interesting and helpful to look at this PDF report from the Charlottesville Heat Watch project: https://charlottesville.gov/DocumentCen ... PDF?bidId=

Let us know what questions you have as you continue to think about your project.

Amy
Science Buddies

[amyCC]

Hi Ciara -

Working (reading) through the ESRI tutorial mentioned is still a good idea.

I would hold off on doing anything else with qGIS at this point. I believe another tool (with a free trial) is being used.

I apologize for any work you've done trying to get qGIS up and running for your project.


Amy
Science Buddies

[ciascience00]

Okay, I've revised my question to be much more specific and easier to explore, based off of your last post, because it would be easier to implement one location rather than many others:

“How do surrounding impervious surfaces in a city effect the temperature of the city’s green urban spaces?”

I'll explore popular green spaces, such as parks or areas with a heavy number of trees and see how the surrounding impervious surfaces affect their temperature.
I think as long as I get as many data sets as I can for one specific city, then all should be well.

However, you mentioned the opportunity to use ESRI again, does the free trial work now? Also, I'm fine with switching over to ESRI, I can be very flexible to which specific program is used, as long as it will help me complete my project.

[amyCC]

Ciara - Sorry if bleep I said confused things. The specific layer data you need isn't available via ESRI (ArcGIS) with the free account. (Mapping heat watch data is, but you can't pull in the other layers listed in the original project.)

What I said in my last message was that there is still value in looking at the ESRI tutorial (scrolling/reading through it and looking at the sample graphs). That gives you a good conceptual model for what you are considering in your project.

Since you are going to narrow down to a single city, I would think about which one (choose bleep from the site I linked that has heat watch data available) -- and then start looking to see if you can find tree canopy and other environmental data. I think, at minimum, you will need heat watch data, census block data, and tree canopy data for the city you use in your project. The sites with the heat watch data have lots of other data files available. See what you can find. If you post the data set names and urls here that you think you might be able to use, we can help and see if you're locating the right types of files.

You'll be using this information (these separate data files) to create maps that will help you correlate the average temperature in different parts of the city with factors like tree canopy (or other data you find about environmental elements, structures, etc.).

While arcGIS would have been a fairly plug-and-play tool to have used, this type of data visualization and analysis often requires or is supplemented with coding.

Are you comfortable with tackling some coding (likely modifying and running some available scripts) as part of your project (with some directions)? I think that's going to be required to use the available tools.

We're still working on an approach to help guide you through the projects. Don't worry yet about any specific tools.

What grade is your project for?

Amy
Science Buddies

[ciascience00]

Long Time no see! I sincerely apologize for the late reply, school work was intense these past few months and so has my personal life, but I promise that I haven't been procrastinating. For the past few weeks, I've been learning more and more about the QGIS program, and I can say that I do know how to create an urban heat island now in the program.

But the problem, now, is that I can't find any files online to use effectively. The website we've mentioned before: https://osf.io/9neka/ doesn't work anymore. When I export files from the website into the program, it always says 'invalid data source'.

And I've tried using CSV text files as well, representing the mean data of heat temperature, but every time I attempt to convert it into point data, the points never end up in the right place. Plus, The files I always find online are either too big for the program, aren't relevant to my project, or some other obstacle.

As for my project, it's mostly the same. I have the exact same question: “How do surrounding impervious surfaces in a city effect the temperature of the city’s green urban spaces?” And I'm still planning on investigating New York City. But finding temperature files for the location is surprisingly harder than I thought.

Also, to answer to your last message, im not particularly comfortable with coding, but my end goal is to complete this project. And I know it sounds bad, but my project is due by the end of this week. Again, I can do the process fine now, I've found some tutorials to help with that and I'm confident that I can do it on my own, the problem is finding the correct files. I'm confident that I can get this done by my due date, but I really just need to find those files. And again, I am so sorry for the late reply, but I would really appreciate it if you could help me once again.

Oh and I'm in the 11th grade (referring to the last question of your message)

[amyCC]

Hi - I thought you might have changed to another project. I'm sorry now to hear this is due this week and you don't have a working data set.

What steps are you planning to take in QGIS? It sounds like you worked it out.... but I'm not sure what you've tested without data to use. I ask because our scientist looking at this project had determined that doing the project would require other steps using R instead (which is why I had asked about your level of comfort with coding a few months ago).

It sounds like you had a plan at this point with QGIS?

The site for the data is still working and available from what I can see. That page loads and data can be selected for a number of locations. I scrolled through and didn't see NY data, but I may have overlooked it. It sounds like you are having difficulty with data you are getting other places?

Using data from the site we've noted (even if it means choosing a different location) may be the best option, especially given your timeline.

Which files have you downloaded (what are the data files of)?
Which, if any, files have you managed to import into Qgis?
What steps are you planning to take?

We will need to know your plan because we don't have a set of steps for QGIS. I think the steps required are more complicated than the original project looked (because it now requires other tools and working with R).

Let us know what your plan is given the timing. The scientist who has been following your initial questions hopes to look at your responses Tuesday.

Amy
Science Buddies

[ciascience00]

Yes, my main concern right now is trying to get the correct files that I need. And that website we've mentioned does have some NY locations, such as the Bronx and Brookyln.
https://osf.io/c6xjv/ - Brooklyn; everytime I try to upload this into the program, it doesn't work. The program keeps giving me an error and I'm not sure why. The file shows up as a JSON 'datacite'.

I couldn't find any point data online for New York heat temperatures/green spaces, such as parks, to implement into the QGIS program, so instead I've been utilizing CSV excel text files that I could manually convert into point data. Here are some examples:
- https://data.cityofnewyork.us/dataset/H ... about_data
(this one was a huge text file that wouldn't fit into the program, it always crashed every time I've tried to implement it. I've tried to use a CSV splitter to make the file smaller, and it did work. I managed to convert it into point data BUT on the "openstreetmap" base map, the points weren't in the right place on the map; instead of New York they ended up in South America?? I know that it has to do with EPSG code, but I'm not sure how it exactly works with this specific type of data file, or how to make it align. I hope that makes sense because I know I made it sound confusing-)

-https://a816-dohbesp.nyc.gov/IndicatorP ... ay=summary (I can't remember if I tried to implement this or not, but still, heres another one I planned on using.)

-https://www.nconemap.gov/datasets/ncden ... 720%2C7.21 (this one isn't New York, BUT I got this from a video. It doesn't exactly fit with what I'm doing, but I figured that the website itself could be useful, especially if I have to change locations, since this website does provide ACTUAL point data.)

-https://github.com/NewYorkCityCouncil/h ... me-ov-file
(This one seemed as if it could provide all the data I need, but for some reason, the downloading process is extremely complicated, plus, it took me a few days until I realized that the data is best represented in Google Earth??)(this is a GEOJson file by the way)

My plan, currently, is to find GEOJson files, prefferably point data for New York, for the following aspects:
-Parks in New York City
-Various Impervious Surfaces
-Temperature/Heat in the area
I do have a rough idea on how to create the urban heat island from this point, I've looked up a few tutorials. I might need a little extra help from that step, but not as much as the one we're currently on. As for the writing point of my project, I can easily get that done quickly. It's just that I'm struggling with finding the right type of files online.

The final draft is due Saturday, but I could ask my teacher for an extension, given the complications and circumstances I've encountered during this project, but that idea isn't a complete guarantee that he might agree with. I would like to at least have the map set up before Friday, so I can have ample time to analyze the map and write the rest of the parts required for my project. And I will try to respond more often to get the process moving faster, its just that I can't respond with enough details during school hours. (But given the timeline, I definitely will try)

By the way, what does R mean?

[amyCC]

Thank you for the detailed information. For the moment, I'm just trying to troubleshoot some of the problems you've encountered...

On the Brooklyn page you linked (https://osf.io/c6xjv/?view_only=), you downloaded the traverses_chw_brooklyn_092922.zip file and dragged that to QGIS and had a problem? (I just tried it, and the shape files imported okay?)

For this one:

- https://data.cityofnewyork.us/dataset/H ... about_data
(this one was a huge text file that wouldn't fit into the program, it always crashed every time I've tried to implement it. I've tried to use a CSV splitter to make the file smaller, and it did work. I managed to convert it into point data BUT on the "openstreetmap" base map, the points weren't in the right place on the map; instead of New York they ended up in South America?? I know that it has to do with EPSG code,

I took that file and saved just a small sample of it to test. I imported that in QGIS as a Delimited Text Layer.... specified the latitude and longitude columns from the sheet and selected the CRS from that same settings screen. When I used the openstreetmap base map, the location seems properly positioned in NY. You might go back and check those settings?

latlong.png (51.79 KiB) Viewed 10948 times

What's the url for the data you are using for the Bronx so that we know which files you tried to work with?

Amy
Science Buddies

[ciascience00]

The data file im using for the Brox is still located in the website you've shown me, I would provide the link, but I'm currently writing this on the school computer instead of my personal one (meaning it's blocked on the school computer, but I'll provide the link when I get home.)

Also, could you tell me the process of how you implemented the brooklyn zip file into QGIS? I think that might be where I went wrong. Again when I tried to implement it myself, the program gave me an error, saying that it was an invalid data source. It never showed up as a shape file for me, is there a specific file that I'm missing in the Zip Folder that I failed to include? (specifically, I took the datacite out of the zip folder and tried to put that into QGIS, but it didn't work)

As for that second file, I also tried to import that as a delimited text layer, but I didn't know how to specify the latitude and longitude columns because those categories didn't show up on the excel sheet itself. When I clicked the dropdown, the latitude and longitude categories were not an option, they didn't show up at all. (I can provide pictures later as well when I get home). I also had trouble with selecting the right CRS.
Now that I think about it, do I have to set up those latitude and longitude columns myself? Because my sample data doesn't look similar to yours. I didn't see the Sensor.ID, Airtemp, Day, Hour, etc. Do I have to manually organize that or should that file be automatically labeled as such?

[amyCC]

Hi - I don't personally have experience using QGIS. So I don't know that getting these files in place is going to accomplish what you are looking for. (The scientist helping with your project is reviewing your posts though.)

But I installed QGIS to see if I could either reproduce or resolve the problems you were having. As I noted last night, both things worked for me.

For the first set - the zip file that has the shape files - I just dropped them into QGIS and it came up showing which files it could import:

addtraversefiles.png (27.55 KiB) Viewed 10903 times

That gives me a map (outline of the space).


For the file from this location: https://data.cityofnewyork.us/dataset/H ... about_data

I exported that file (button top right). I opened it and copied just a sampling of rows so I had a small file to work with and saved it as a .csv file. That file (which is the location you provided) has the following structure:

export-brooklyn.png (27.44 KiB) Viewed 10903 times

The latitude and longitude columns are there. (They are all exactly the same though, so it's a single point on the map.)

I imported that by using Layer / Add Layer / Add Delimited Text Layer


That allowed me to:
1 Specify the file
2 Identify the lat/long columns (which the exported data does have)
3 Select the Geometry CRS (there were only two options)


I'm particularly confused by your data file not having latitude and longitude.

I know you are at school. I'll check back later to see if there is any update -- or possibly with some additional information for you.

Amy
Science Buddies

[amyCC]

Hi - I am following up since I know you might be working with your files this evening. I've spent time today pulling files into QGIS, and I've been able to import transverse/shape files (make sure you import the zip files) for temp data and tree canopy and water body files. By experimenting in QGIS with how the data on each layer is plotted (and using a graduated style for the temp data), I've got working maps of the location I've been doing.

By pulling in data for your locations and setting up similar layered maps that let you look at temperatures in relation to environmental and urban features, you should be able to do some comparisons between your areas.

For temp data, you can get "Brooklyn and Lower Manhattan" here: https://osf.io/c6xjv/ and "Bronx & Manhattan" here: https://osf.io/j6eqr/

For adding in other elements.... For Brooklyn, you can export data sets here: https://scout.tsdataclinic.com/explore/NYC
Search by keywords like trees or wetlands to find files to use.

Let us know how it goes.

Amy
Science Buddies

Also - Be sure and document the source locations (urls) for all of the data you pull. You will need to include that in your citations.

[ciascience00]

I don't think I'll have time to work with the simulation tonight (because I have a lot of homework and a test tomorrow), but I do have some positives:

After further inspection, I realized that I made some silly mistakes. For the Brooklyn file, I downloaded the File Metadata instead of the actual zip file. I followed your steps, and yes, it works with the OpenStreetMap base map. And as for the big CSV file, I (somehow) downloaded the wrong one, or maybe that it didn't give me the correct file at first. Now I see the correct categories on the excel sheet, which is good because now I have some of the files I need.

I implemented both of the aforementioned files, and they work splendidly. I'll take a more analytical look at the new files you mentioned tomorrow, I'll have more time then.

[ciascience00]

Quick little follow-up. I had no problems with exporting all of the files into QGIS, and everything is currently working out. Quick question however, because this is a science project, what exactly would I take pictures of? (to show my data and such)? I know that I'm going to take a picture of the urban heat island map itself, but should I take pictures of the different sections of the map? Ex. "This is the heat comparison in Brooklyn compared to the Bronx". I would like just a little advice on that.

I've gotten a quick head-start today, because the map is currently saved and ready to go, but I haven't actually made it into a heat map yet. I'll have all the time tomorrow to work on it.

[amyCC]

I think what you show will depend on what your hypothesis for the project is.

I’m not sure what your assignment is or what you are turning in this week. I believe you said it’s a written paper? You’ve been working on this since back in November?

Depending on what conclusions you are drawing from your analysis of the data for your locations and how they compare, I think you’ll probably find it straightforward to decide what screenshots to use to help tell the story, you can certainly show different views of each location with specific layers on that help show if/how various features impact temperature. You then also have the ability to show side by side comparisons of your locations.

It really depends on what hypothesis you set up and how you defined the variables you are looking at. You want to choose visual assets that help you present your findings.

If you have been able to load various data sets, including.using temperature and features that might relate to temperature, then you are creating the maps. Is there bleep more you are planning?


Amy
Science Buddies

[ciascience00]

Yes, it's supposed to be a written paper about my science project. And thank you for the picture advice, I'll show the map with certain layers displayed to convey how the impervious surfaces temperature can affect the green urban spaces. I'm currently planning on taking pictures of each little section/borough of New York and then showing the full map. (quick question, should I add the attribution tables as well with the actual numbered data?)

Also, I have another inquiry about the formation of the urban heat island map.
This is what it currently looks like with all of my files added onto the base map.


These are the settings I've inputted to make configure and display the urban heat island map.



And this is what I get; The program takes a few moments to load, and it does take up my whole screen. I know the settings I've made previously are correct, but I am unsure if I put the right size in those settings. (like, should it be in map units? is the value I inputted wrong?) I've only made the setting change to one of the points.

Again, I've been following many different types of tutorials and videos. But I am unsure of why this is occurring. (also, I apologize if the images don't correctly show up, you can just click on the image file and press "load image in new tab" and it should show up)