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A headshot of Brian Markham. Tree branches can be seen in the background; Brian is smiling.

Data as Good as it Gets:
A Discussion with Brian Markham

Why do we calibrate Landsat data? We spoke with Brian Markham, a key figure of Landsat calibration science for four decades. He said that it all comes down to this: “If we’re using a system to quantify changes on the Earth, we must make sure the system we’re using is not changing.”

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Landsat image of a Klamath reservoir after dam removal. A skinny dark band shows a river surrounded by silty formerly-submerged lands.

Undamming the Klamath

Between October 2023 and October 2024, the four dams of the Klamath Hydroelectric Project were taken down, opening more than 400 miles of salmon habitat.

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News Archives
A headshot of Brian Markham. Tree branches can be seen in the background; Brian is smiling.

Data as Good as it Gets:
A Discussion with Brian Markham

Why do we calibrate Landsat data? We spoke with Brian Markham, a key figure of Landsat calibration science for four decades. He said that it all comes down to this: “If we’re using a system to quantify changes on the Earth, we must make sure the system we’re using is not changing.”

Read More »
News Archives
A headshot of Brian Markham. Tree branches can be seen in the background; Brian is smiling.

Data as Good as it Gets:
A Discussion with Brian Markham

Why do we calibrate Landsat data? We spoke with Brian Markham, a key figure of Landsat calibration science for four decades. He said that it all comes down to this: “If we’re using a system to quantify changes on the Earth, we must make sure the system we’re using is not changing.”

Read More »