## 3 Results
### Evaporation and Transpiration Partitioning  
Although daily ET compares well with observations, individual contributions of evaporation (E) and transpiration (T) will provide a better understanding of actual crop water use, particularly in systems with distinct rows and inter-rows. Figure 4 shows a timeseries of these partitioned estimates of E and T for DisALEXI-PT (left) and DisALEXI-PM (right), each denoted as a stacked bar plot, with brown indicating E and green indicating T. Additionally, included are derived E and T estimates (brown and green line, respectively) using the CEC approach as defined in [26] and modeled daily LAI (blue line) from [75]. Timeseries analysis indicates DisALEXI-PT produces elevated estimates of E when compared to CEC E values. This is most notable during the middle of the season, when one would expect E values to be minimal. CEC E values, regardless of the time of year, are close to zero and rarely exceed more than 1 mm day\({}^{-1}\). The largest difference between DisALEXI-PT E and CEC E is found at OLA, where DisALEXI-PT E contributes to 34% of the total ET on average over the year. From the timeseries, we find that this percentage increases during June and July, when one would expect E/ET values to decrease or be closer to zero, which is suggested by CEC. It is important to note that OLA is the southernmost site and is exceptionally dry during the summer months (i.e., bare inter-rows with no cover crop). Such a physical setting would suggest little to no E during these months, aligning with CEC-derived E, instead of the elevated values suggested by DisALEXI-PT. Conversely, DisALEXI-PM produces estimates of E that align more closely with CEC-derived E values, with E rarely exceeding 1 mm day\({}^{-1}\) regardless of site or time of year. Although muted in comparison, DisALEXI-PM aligns with DisALEXI-PT in that modeled E is highest for site OLA. This trend is only present prior to June, with E values becoming negligible in terms of total ET during the latter half of the year. In comparison with the E performance, the DisALEXI-PT and DisALEXI-PM-derived T values correlate much better with the CEC-derived T values (Figure 4), except at site RIP during the peak growing season, aligning with the results presented in Figure 2. The DisALEXI-PT and DisALEXI-PM T estimates generally follow annual LAI trends, with values starting low and slowly increasing to peak values during the middle of the year before gradually declining. The decline in T is most abrupt at almond sites, particularly for CEC T, which shows a rapid decrease in T beginning in August. This is a result of irrigation management during a phenological period called hull split. When the almond splits and exposes the soft shell inside (hull split), it leaves the almond more vulnerable to diseases such as hull rot [76]. To limit damage, growers reduce irrigation to promote the drying out of the nuts and to shorten the window of time where the orchard is vulnerable to damage, causing estimates of T (and ET) to decrease. Although the DisALEXI-PT and DisALEXI-PMT values decrease in response to hull split, they fail to match the magnitude of the decline, remaining ~2 mm day\({}^{-1}\) higher than the estimates provided by CEC (for site OLA where Landsat imagery is available). Scatter plots between the modeled and observed partitioned fluxes show similar patterns (Figure 5). Specifically, we find clear discrepancies between DisALEXI-PT and DisALEXI-PM E partitioning, with the latter more closely aligning with CEC E (Figure 5, bottom row) and the former often overestimating (Figure 5, top row) with an overall MBE = 0.88 mm day\({}^{-1}\) (Table 2) as the CEC E remains consistently small (<1 mm day\({}^{-1}\)). In contrast, the T estimates from DisALEXI-PT generally align with the CEC T, with an MBE of \(-\)0.07 mm day\({}^{-1}\) when averaged over all sites, where DisALEXI-PM yields an MBE of 1.02 mm day\({}^{-1}\). The DisALEXI-PM T estimates perform best at sites RIP and VAC, coinciding with worse DisALEXI-PT T performance.