Online Mapping/Census Tools

[Uhuniau]

Originally Posted by dougvdh

Looks like they were taken around late March / early April 2025 by the progress of key projects such as the new apartments at Booth and Albert.

I was also trying to discern exactly when. I think it's later in April because:

- the state of the snowpack. There were places I know were annoyingly still snow-affected quite late in April, but they are clear in this imagery.

- a previously vacant storefront that I know was used as a federal election campaign HQ looks like it was still in heavy use; election day was the 25th?

- the river is high, but I don't think any paths are flooded, so it's before peak water.

I was hoping for fall imagery this time, to see some river features that pop during low water.

[urbanforest]

I suspect the imagery was taken over several days, but mid-late April seems about right. A couple observations:

- Tunney’s Pasture parking is empty = weekend/holiday
- Costco at Blair has an empty parking lot = they typically are closed Easter Sunday, so April 20th
- Costco in Nepean has a full parking lot, so…different imaging date?
- the far east side of Jacques Cartier park is full of snow, though I do see several places with umbrellas and patio furniture set up, so the weather was getting warmer.

[Uhuniau]

Originally Posted by urbanforest

I suspect the imagery was taken over several days, but mid-late April seems about right. A couple observations:

- Tunney’s Pasture parking is empty = weekend/holiday
- Costco at Blair has an empty parking lot = they typically are closed Easter Sunday, so April 20th
- Costco in Nepean has a full parking lot, so…different imaging date?
- the far east side of Jacques Cartier park is full of snow, though I do see several places with umbrellas and patio furniture set up, so the weather was getting warmer.

The Saturday of the Easter weekend was beautiful IIRC.

[MarkR]

Given the huge time gap between 1928 and 1958 in the air photos collection, I wonder why a known collection of 1930 thru 1945 photos are not included? https://gsg.uottawa.ca/geo/airphotos/

[Uhuniau]

Originally Posted by MarkR

Given the huge time gap between 1928 and 1958 in the air photos collection, I wonder why a known collection of 1930 thru 1945 photos are not included? https://gsg.uottawa.ca/geo/airphotos/

Why would you do this to me?

[J.OT13]

Originally Posted by MarkR

Given the huge time gap between 1928 and 1958 in the air photos collection, I wonder why a known collection of 1930 thru 1945 photos are not included? https://gsg.uottawa.ca/geo/airphotos/

Wow! Who do we need to contact to add these!?

[Uhuniau]

The resolution on one of those 1930s-vintage sets (A6352, I think) is amazing.

Like... you can see the streetcars and their tracks on Bank and Elgin. You can easily make out paths in the woods and brambles on the margins of built-up areas. The frickin' transmission lines across the river are clearly visible. You can make out shadows of individual pedestrians.

[Uhuniau]

This might also be the place to re-up this resource, which often provides useful geographical cross-references.

https://carleton-u.maps.arcgis.com/apps/...l?appid=d60ee422c7ab480ca03d755bf8cd2446

[Uhuniau]

Originally Posted by J.OT13

Wow! Who do we need to contact to add these!?

I won't have time to play around with them for a while, but a smart computer person could generate an interface using the GIS data that forms part of that entire collection.