Table 2.

Validation results for prediction against ground truth (simulation), averaged over 10 predictions using different random observation data. ‘Wave’ and ‘element’ refer to methods for calculating CV described in §2f, but the corresponding validation scores are for magnitude of LAT gradient. Both nRMSE and ISE coverage are in %.

	LAT		wave $|\mathrm{\nabla }\text{LAT}|$		element $|\mathrm{\nabla }\text{LAT}|$
number of observations	nRMSE	|ISE| ≤ 2	nRMSE	|ISE| ≤ 2	nRMSE	|ISE| ≤ 2
50	2.34	95.7	15.0	91.8	14.0	91.5
100	1.51	94.3	11.7	93.7	11.1	93.4
250	0.91	96.0	9.46	94.5	9.16	93.9
500	0.66	96.1	8.38	93.1	8.22	92.2
750	0.56	96.1	7.62	93.3	7.56	92.2
1000	0.50	95.6	7.22	92.6	7.22	91.6