On the Potential of 25 Years (1991–2015) of Rawinsonde Measurements for Elucidating Climatological and Spatiotemporal Patterns of Afternoon Boundary Layer Depths over the Contiguous US

Table 2

Geographic regions of the contiguous US, number of IGRA stations, and latitude and longitude bounds.

Region	Number of IGRA stations	Latitude and longitude
Northwest	7	Latitude: north of 42.0°N
		Longitude: west of 103.0°W
Northern Great Plains	7	Latitude: north of 37.0°N
		Longitude: west of 94.0°W and east of 103.0°W
Upper Midwest	5	Latitude: north of 37.5°N
		Longitude: west of 82.5°W and east of 94.0°W
Southern Great Plains	5	Latitude: south of 37.0°N
		Longitude: west of 94.0°W and east of 103.0°W
Southwest	9	Latitude: south of 42.0°N
		Longitude: west of 103.0°W
Northeast	6	Latitude: north of 37.0°N
		Longitude: east of 82.5°W
Southeast	8	Latitude: south of 37.0°N
		Longitude: east of 94.0°W