02/05/1977: DTW difference: RGWCD = 13.33; USGS = 12.13.
Documentation for RG28 (374459105554201) on 02/1977
03/07/1977: DTW difference: RGWCD = 11.83; USGS = 10.63.
Documentation for RG28 (374459105554201) on 03/1977
04/27/1977: DTW difference: RGWCD = 15.50; USGS = 10.34.
Documentation for RG28 (374459105554201) on 04/1977
11/04/1982: DTW difference: RGWCD = 18.55; USGS = 18.53.
Documentation for RG28 (374459105554201) on 11/1982