HDF5 file, superblock version 2
group /
	attribute Conventions = "COARDS, CF-1.5"
	attribute GMT_version = "5.0.1b_r12392 [64-bit]"
	attribute description = "grdsample -R275/290/30/45 /Users/altim/data/ETOPO2/etopo2v2.nc -Getopo2-chesapeake.nc=ns"
	attribute history = "grdreformat test/genper/etopo2-chesapeake.nc etopo2-chesapeake.nc=ns"
	attribute node_offset = 1
	attribute title = "Produced by grdreformat"
dataset /lat: float64, shape (450)
	attribute actual_range = 30.0, 45.0
	attribute long_name = "latitude"
	attribute units = "degrees_north"
// lat: first 30.016666666666666, last 44.983333333333334, count 450
dataset /lon: float64, shape (450)
	attribute actual_range = 275.0, 290.0
	attribute long_name = "longitude"
	attribute units = "degrees_east"
// lon: first 275.01666666666665, last 289.98333333333335, count 450
dataset /z: int16, shape (450, 450)
	attribute _FillValue = -32768
	attribute actual_range = -5587.0, 1828.0
	attribute long_name = "z"