Table 1 Input parameters and data for Quillcay and Chicon for the hydrological balance model based on Temez
Input parameters/ data | Quillcay | Chicon | |
|---|---|---|---|
Supply | Precipitation | Monthly Precipitation data was collected from various weather stations between 1980 and 2015 in the area of Cordillera Blanca, interpolated and averaged based on the GRID cells for the Quillcay catchment area (Bárdossy and Pegram 2014) | Monthly Aggregated from daily measurements at SENAMHI weather station in PISAC from the years 1963 to 2014 |
Daily glacier melting rates | Dry season: 4 mm/day Wet season: 10 mm/day (Kronenberg 2019) | Dry season: 4 mm/day Wet season: 8 mm/day (Kronenberg 2019) | |
Potential evapotranspiration | estimated on the reference evapotranspiration (ETo) calculator based on the standard FAO Penman-Monteith equation (Allen et al. 1998), which uses maximum and minimum temperatures | estimated on the reference evapotranspiration (ETo) calculator based on the standard FAO Penman-Monteith equation (Allen et al. 1998), which uses maximum and minimum temperatures | |
Temperature | Temperature was obtained from the ONERN and SENAMHI weather stations in Huaraz at 3200 m a.s.l. for the periods 1950 to 1954, 1965 to 1970 and 1978 to 1995 (PROFODUA 2008) | Monthly Min./Max. aggregated from daily measurements at SENAMHI weather station in PISAC from the years 1997 to 2014 | |
Evaporation | Monthly average using evaporation rates from Conococha lake at 4020 m asl (local report/source, not published) | Monthly average measured at Sibinacocha 4800 m asl 1981 to 1996 (EGEMSA) | |
Runoff (used for calibration) | monthly average between 1953 to 1999 (ANA: AEGL) | few point measurements (Estudio hidrológico Chicón, Municipalidad provincial de Urubamba, 2012) | |
Demand | Domestic | 120 l/capita/day with water leakages in the order of 45% (97 l/capita/day) (Drenkhan et al. 2019) Scenarios: population numbers based on INEI 2017 and growth rate of the region of Ancash | 120 l/capita/day with water leakages in the order of 45% (97 l/capita/day) (Drenkhan et al. 2019) Scenarios: population numbers based on INEI 2017 and growth rate of the region |
Agriculture | based on the crop requirement of the existing crops (PROFODUA 2008) including net irrigation requirement, crop requirement, effective precipitation, planted area, ETo and the crop coefficient (Kc) according to FAO (Allen et al. 1998) and growth stages of the different crops | 1 l/s/ha according to Diagnosis and Water Resources Management Plan of the Vilcanota Urubamba Sub-basin (ANA 2010) |