https://www.nodc.noaa.gov/archive/arc0001/0000272/1.1/data/0-data/3etap/?C=D;O=A
Index of /archive/arc0001/0000272/1.1/data/0-data/3etap
index ofarchivedata
https://www.nodc.noaa.gov/archive/arc0001/0000272/1.1/data/0-data/3etap/?C=M;O=A
Index of /archive/arc0001/0000272/1.1/data/0-data/3etap
index ofarchivedata