Table 2.

Summary of in situ observations in the ice–ocean boundary layer: mean temperature (T), absolute salinity (S_A), pressure (P), current (U) averaged within the ice–ocean boundary layer (D), and computed basal-melt rate ($\dot{m}$).

Borehole	Date	Start time	End time	T	SA	P	U	D	$\dot{m}$
		UTC	UTC	°C	g kg−1	MPa	mm s−1	m	m a−1
BH1801–H	Jan-17, 2018	15:16	15:23	−1.36	34.43	2.15	14.1	42	1.42
BH1802–H	Jan-10, 2018	10:15	10:21	−1.30	34.46	2.75	4.8	40	0.56
BH1803–H	Jan-01, 2018	17:21	17:27	−1.20	34.47	3.68	8.7	18	1.29
BH1804–H	Jan-24, 2018	07:00	07:02	−1.21	34.45	3.81	8.4	12	1.25
BH1801–L	Jan-17, 2018	10:13	10:21	−1.35	34.43	2.15	16.3	47	1.62
BH1802–L	Jan-10, 2018	15:24	15:31	−1.31	34.45	2.75	8.8	48	1.00
BH1803–L	Jan-06, 2018	07:15	07:21	−1.20	34.48	3.68	17.0	18	2.46
BH1804–L	Jan-23, 2018	12:15	12:18	−1.20	34.44	3.81	12.0	12	1.77
Mean									1.42

Measurements were taken at least twice at each drilling site (BH1801–BH1804) around high tide (denoted by H) and low tide (denoted by L). The listed water properties were used to calculate the basal-melt rates.