A abbreviated history of aerial photography and digital rem

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CWU, . Geog. 430. With special thanks to. http://www.geog.ucsb.edu/~. jeff/115a/remotesensinghistory.html. and. http://www.uwyo.edu/rs4111. /. . The earliest stuff….. Mid 1800s. Photos from balloons.. ID: 594157 Download Presentation

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A abbreviated history of aerial photography and digital rem




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Slide1

A abbreviated history of aerial photography and digital remote sensing

CWU,

Geog

430. With special thanks to

http://www.geog.ucsb.edu/~

jeff/115a/remotesensinghistory.html

and

http://www.uwyo.edu/rs4111

/

Slide2

The earliest stuff….

Mid 1800s. Photos from balloons.First known – a shot of Boston taken in 1861.

Slide3

Soon thereafter

Kites

1906 huge panoramas of San Fran after the fires. 17 kites to lift camera 2000 feet.

Pigeons!

1903 – first camera designed for homing pigeons.

Homing pigeons, cameras set on timers.

Bavarian Pigeon Corps! No kidding.

Rockets.

First successful pic taken from a rocket was by Alfred Nobel. Yeah, THE Nobel.

But, by 1912 or so, airplanes were taking off. Literally.

Slide4

SF, 1906http://professionalaerialphotographers.com/content.aspx?page_id=22&club_id=808138&module_id=158950

Slide5

Slide6

http://professionalaerialphotographers.com/content.aspx?page_id=22&club_id=808138&module_id=158950

Slide7

Ahhh.. Airplanes!

First pics in about 1909. But things didn’t really start to take off until WWI

Slide8

Many issues at first!

Propeller blast;

Lens fogged by oil thrown

by

the engine;

Difficulty in aiming and

framing

;

Struts and wires block vision;

Observers distracted by multiple

duties

, including

observation

, navigation,

and

defense against

enemy

pursuit aircraft

Vertical photography difficult;

Changing plates in flight difficult;

No supplemental oxygen

Hard to get results to field quickly

Solutions?

Slide9

However,

During the war, aerial photography proved itself as the best way to do reconnaissance.

Started to hard-mount cameras, etc. Nonetheless, traditionalists in the military kept this technology from becoming mainstream.

Balloons still used, too. A much more stable platform, though far less versatile and more vulnerable. (note, we still use weather balloons!)

Slide10

1919 - 1940

Rapid increase in the use of aerial photos (

ie

. USGS) and technological improvements included better cameras, planes, and tools/technologies for interpreting said photos.

Slide11

WWII

This is when aerial photography really took off. Military value both recognized and embraced.

Included imaging in the thermal band

1930s, first black and white infrared films

1960s, false color films.

Slide12

Post WWII

US federal government take a bajillion pics over the years. Basically, 1955 – present. All are archived.

For more info

https://

www.fsa.usda.gov/Assets/USDA-FSA-Public/usdafiles/images/afpo/vault_holdings2.pdf

Or

to download:

http://gis.apfo.usda.gov/gisviewer

/

Slide13

Cold war!

Cuban Missile CrisisThe U2 – dedicated reconnaissance plane. 195570,000 ft1960 shot down over Soviet Union. Ushered in satellite remote sensing.Still in service.https://en.wikipedia.org/wiki/Lockheed_U-2

Slide14

Aerial photography continues

But largely digital these days.

State of the art are military drones, which send back amazing amounts of information and can stay in the air for a very long time.

Slide15

Now, finally, into Satellite remote sensing

TIROS 1, 1962. Weather satellite. Television transmission of data. Real-time if a ground station within range.

Over the years, many successive generations build, leading to what you see on weather.com! (GOES satellites. .6 miles visible, 2.5 mile res IR).

Slide16

Contrast with

http://www.weather.com

Slide17

Corona

First spy satellite. Basically, a regular ole film camera in space.

Had to eject film canisters and pick them up.

http://www.geog.ucsb.edu/~

kclarke/Corona/Corona.html

1958-1972

The first photo taken from a satellite

The first recovery of an object from space and

the first in mid-air.

The first mapping of Earth from space.

The first use of multiple re-entry vehicles.

The first space program to fly 100 missions.

Slide18

Slide19

Earth observing satellites

Landsat series.

Landsat 1, 1972. Wheat and SALT

Objective was to be able to track what happens on the ground – both what is where and change over time.

Landsat satellites still up!

http://landsat.usgs.gov//index.php

Slide20

Slide21

Now, a break from history

And on to resolution and the electromagnetic spectrum.


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