Correction: Tzanakakis et al. Challenges and Opportunities for Sustainable Management of Water Resources in the Island of Crete, Greece. Water 2020, 12, 1538

The authors wish to make the following corrections to the published paper [1], there were mistakes as follows:

1.

In the abstract, the text in 3rd and 4th lines:

“Under average meteorological conditions, the island is water-sufficient (969 mm precipitation; theoretical water potential 3284 hm³; and total water use 610 hm³)” should be corrected as “Under average meteorological conditions, the island is water-sufficient (967 mm precipitation; theoretical water potential 3425.89 hm³; and total water use 610 hm³)”.

2.

In Table 1, the data of Normal year should be corrected as follows:

Table 1. Average annual estimations of the hydrologic cycle components in Crete on normal, wet, and dry years. Source: [14].

Hydrologic Conditions	Unit	Precipitation	Actual ET (57.50%)	Run-Off (15.00%)	Infiltration (27.50%)
Normal year	mm	967
	hm3	8060.91	4635.02	1209.14	2216.75
Wet year	mm	1244
	hm3	10,369.98	5962.74	1555.50	2851.74
Dry year	mm	610
	hm3	5084.96	2923.85	762.75	1398.36
Year 2017–2018	mm	480
	hm3	4001.28	2300.74	600.19	1100.35

Data of 40 years from 90 Meteorological stations.

Table 1. Average annual estimations of the hydrologic cycle components in Crete on normal, wet, and dry years. Source: [14].

Hydrologic Conditions	Unit	Precipitation	Actual ET (57.50%)	Run-Off (15.00%)	Infiltration (27.50%)
Normal year	mm	967
	hm3	8060.91	4635.02	1209.14	2216.75
Wet year	mm	1244
	hm3	10,369.98	5962.74	1555.50	2851.74
Dry year	mm	610
	hm3	5084.96	2923.85	762.75	1398.36
Year 2017–2018	mm	480
	hm3	4001.28	2300.74	600.19	1100.35

Data of 40 years from 90 Meteorological stations.

3.

The General hydrological data (annual average values of a normal year) for the river basin districts (RBDs) of the island of Crete have some mistakes, and the relevant description and table should be corrected as following:

In “Water Availability and Climate Variability Impacts” Section 4.2:

“The average yearly precipitation on Crete (969 mm) corresponds to approximately 6109 hm³ [55] (Table 3). However, less than 36% of the precipitation is stored in the soil or percolates to deeper horizons. By contrast, ET and runoff to the sea account for 73% and 19% of the precipitation, respectively. As a result, the theoretical total water reserves are estimated to be 3284.17 hm³/year (Table 3), accounting for 54% of precipitation, without considering the potential contribution of non-conventional water recourses.” should be written as “The average yearly precipitation on Crete (967 mm) corresponds to approximately 8060.91 hm³ [55] (Table 3). However, less than 27.50% of the precipitation is stored in the soil or percolates to deeper horizons. By contrast, ET and surface runoff to the sea account for 72.50% of the precipitation. As a result, the theoretical total water potential is estimated to be 3425.89 hm³/year (Table 3), accounting for 42.50% of precipitation, without considering the potential contribution of non-conventional water recourses.”

The Table 3 should be changed to the following table:

Table 3. General hydrological data (annual average values of a normal year) for the river basin districts (RBDs) of the island of Crete.

Parameter	Unit	RBD of Crete
Area	km2	8336.00
Precipitation	mm	967.00
Volume of precipitation	hm3	8060.91
Evapotranspiration	hm3	4635.02
Percolation	hm3	2216.75
Surface runoff	hm3	1209.14
Theoretical water potential	hm3	3425.89

Table 3. General hydrological data (annual average values of a normal year) for the river basin districts (RBDs) of the island of Crete.

Parameter	Unit	RBD of Crete
Area	km2	8336.00
Precipitation	mm	967.00
Volume of precipitation	hm3	8060.91
Evapotranspiration	hm3	4635.02
Percolation	hm3	2216.75
Surface runoff	hm3	1209.14
Theoretical water potential	hm3	3425.89

4.

In “Groundwater” Section 4.4.2:

“The annual underground water supply in Crete is estimated to be 2172.31 × 10⁶ m³/year (Table 8) of which a significant portion is brackish” should be “The annual underground water supply in Crete is estimated to be 2216.75 × 10⁶ m³/year (Table 8) of which a significant portion is brackish”.

5.

The data of water potential of major hydrogeological units of Crete have some mistakes and Table 8 should be changed to:

Table 8. Water potential of major hydrogeological units of Crete (table data are based on estimates of over 91 individual hydrogeological units throughout Crete). Source: [14,15].

Hydrogeological Formations	Area (km2)	Average Annual Precipitation (mm)	Volume of Precipitation (hm3/Year)	Average Percolation (%)	Volume of Percolated Water (hm3/Year)
Karstic	3333.07	1300	4332.99	34.85	1510.24
Neogenic	2950.92	693	2044.99	23.75	485.66
Others	2052.01	780	1600.57	11.02	176.41
Total/Average	8336.00	967	8060.91	27.50	2216.75

Table 8. Water potential of major hydrogeological units of Crete (table data are based on estimates of over 91 individual hydrogeological units throughout Crete). Source: [14,15].

Hydrogeological Formations	Area (km2)	Average Annual Precipitation (mm)	Volume of Precipitation (hm3/Year)	Average Percolation (%)	Volume of Percolated Water (hm3/Year)
Karstic	3333.07	1300	4332.99	34.85	1510.24
Neogenic	2950.92	693	2044.99	23.75	485.66
Others	2052.01	780	1600.57	11.02	176.41
Total/Average	8336.00	967	8060.91	27.50	2216.75

We apologize for these errors and state that the scientific conclusions are unaffected. The original article has been updated.