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Verifying vertical displacement map equation #15

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@tshreve

Hi,

I just wanted to double-check the formula used in the Hyp3 Product Guide for converting from LOS to vertical displacement (https://hyp3-docs.asf.alaska.edu/guides/insar_product_guide/#correcting-vertical-displacement-maps). My understanding is that one should divide by cos(pi/2-theta) when converting from LOS to vertical displacement, as opposed to multiply (when theta is the look vector). Please let me know if I am missing something!

Thanks for all the resources you provide to make InSAR data more accessible.

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