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## By Year

Technical Memos        April 7, 1997        TM97-04 Tritium/helium dating of ground-water samples available through contract with Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York

Animated GIF        December 31, 2016        Bastnaesite Sample

Animated GIF        December 31, 2018        Land Change in the Black Hills - LCMAP

Animated GIF        June 7, 2023        EROS 50th Anniversary Graphic Animated

Technical Memos        July 20, 2021        NMFS Biological Opinion

Technical Memos        July 20, 2021        NMFS Incidental Harassment Authorization

Technical Memos        October 8, 1998        TM99-01 Change in reporting unit for relative abundances of helium isotopes

Technical Memos        July 20, 2021        USFWS Incidental Harassment Authorization

Animated GIF        December 31, 2016        Chester County, Pennsylvania Land Change Animation

Animated GIF        December 31, 2018        Twelvemile Lake - Change Over Time

Animated GIF        June 21, 2022        Landsat 9 First Light Images

Animated GIF        January 1, 2019        NHM: simulated streamflow for April through June, 2011

Technical Memos        December 13, 2018        NCCWSC 2009 National Workshop Summary

Technical Memos        July 20, 2021        Final Environmental Assessment

Animated GIF        June 1, 2018        Kīlauea Volcano — Caldera Changes (May 23 - 31)

Animated GIF        June 7, 2018        Kīlauea Volcano — Satellite Radar of Crater Slumping

Animated GIF        June 3, 2018        Kīlauea Volcano — Halema‘uma‘u Crater Slumping Animation

Animated GIF        June 18, 2018        Kīlauea Volcano — Satellite Radar (Continued Slumping)

Animated GIF        June 15, 2018        Kīlauea Volcano — Halema`uma`u Crater Enlargement

Animated GIF        July 8, 2018        Kīlauea Volcano — Animated GIF of Crater Subsidence

Animated GIF        July 4, 2018        Kīlauea Volcano — Animation of Summit Subsidence

Animated GIF        June 30, 2018        Kīlauea Volcano — Animation of Summit Drop

Animated GIF        May 29, 2018        Kīlauea Volcano — Animation of Summit Enlargement

Technical Memos        April 7, 1997        TM97-04S Collection, processing, and analysis of ground-water samples for tritium/helium-3 dating;