January 29, 2020
By Tracy Cozzens
January 15, 2020
By John Pottle
January 6, 2020
By William Tewelow, GISP
December 18, 2019
By Tony Murfin
December 6, 2019
By GPS World Staff
December 4, 2019
By Dana Goward
By David B. Zilkoski
November 25, 2019
November 20, 2019
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![Figure 27: GRACE Trend over CONUS from UTCSR RL06 Model [mm/yr] (Source: Figure 27 from Technical Report NOS NGS 69)](https://redesign.gpsworld.com/wp-content/uploads/zilkoski-december-2019-column-image-19.jpg)
