Surface Air Temperature Fluctuations and Lapse Rates on Olivares Gamma Glacier, Rio Olivares Basin, Central Chile, from a Novel Meteorological Sensor Network

Table 3

Comparison of mean hourly lapse rate data (°C km⁻¹) for 22–26 March 2015 at the five Tinytag sites (2-m sensors). See Figure 1 and Table 1 for site details. Hours with nocturnal observations are highlighted in italic (https://www.timeanddate.com/sun/chile/santiago), here illustrated in UTC.

Hour (UTC)	LR (S4-S2)	LR (S3-S2)	LR (S5-S2)	LR (S6-S2)	LR (S4-S6)	LR (S3-S6)	LR (S5-S6)	LR (S4-S5)	LR (S4-S3)
0	−7.4	−6.8	−8.3	−10.9	−6.4	−4.7	−6.5	−6.3	−8.3
1	−7.6	−7.4	−8.5	−9.8	−7.0	−6.1	−7.6	−6.6	−8.0
2	−6.9	−6.2	−7.6	−8.7	−6.4	−4.9	−6.9	−6.0	−8.0
3	−7.2	−6.5	−8.1	−10.9	−6.2	−4.3	−6.3	−6.1	−8.4
4	−8.3	−8.3	−9.6	−11.4	−7.5	−6.7	−8.4	−6.9	−8.3
5	−7.9	−7.9	−9.1	−9.1	−7.5	−7.2	−9.0	−6.4	−7.8
6	−7.7	−7.3	−8.7	−8.7	−7.4	−6.5	−8.7	−6.5	−8.3
7	−7.2	−7.3	−8.6	−9.2	−6.6	−6.3	−8.2	−5.4	−7.0
8	−6.9	−6.6	−8.2	−9.2	−6.2	−5.3	−7.5	−5.3	−7.4
9	−7.2	−6.1	−7.6	−9.5	−6.6	−4.4	−6.3	−6.8	−9.2
10	−7.4	−6.9	−8.4	−9.6	−6.8	−5.5	−7.6	−6.3	−8.3
11	−7.2	−6.5	−8.0	−9.3	−6.6	−5.1	−7.1	−6.2	−8.3
12	−6.2	−6.2	−7.6	−7.8	−5.7	−5.3	−7.4	−4.5	−6.1
13	−5.8	−6.5	−8.3	−7.7	−5.3	−5.9	−8.8	−2.7	−4.5
14	−7.0	−7.3	−7.9	−7.4	−6.9	−7.2	−8.3	−5.9	−6.6
15	−10.0	−10.1	−11.5	−13.0	−9.2	−8.6	−10.5	−8.3	−9.8
16	−9.0	−7.0	−10.0	−8.6	−9.1	−6.1	−11.0	−7.8	−12.5
17	−9.1	−8.3	−10.8	−2.1	−11.0	−11.5	−16.6	−7.1	−10.5
18	−6.2	−0.3	−5.0	1.5	−8.3	−1.2	−9.3	−7.5	−16.3
19	−7.0	−1.9	−5.1	−3.2	−8.1	−1.1	−6.4	−9.3	−16.0
20	−7.4	−7.1	−8.6	−7.1	−7.4	−7.1	−9.6	−5.9	−7.8
21	−7.5	−7.3	−9.2	−8.0	−7.4	−6.9	−10.0	−5.5	−7.9
22	−7.2	−6.7	−8.1	−6.6	−7.4	−6.7	−9.1	−6.3	−8.2
23	−7.7	−7.1	−8.5	−9.6	−7.2	−5.8	−7.8	−6.8	−8.8
Mean	−7.5	−6.6	−8.4	−8.2	−7.3	−5.9	−8.5	−6.4	−8.9
ST DEV	0.9	1.9	1.4	3.1	1.2	2.1	2.2	1.3	2.7