OPENCIVTECHFields and gardens.
What the sky over Silvi says for the next seven days, explained for anyone with a field, an olive grove or a vegetable garden.
This is a weather model forecast, rewritten in plain words for people who grow things. It is not an official bulletin: for weather alerts only AllarMeteo Abruzzo applies.
This week in Silvi
Reading the forecast…
Day by day
How much water the garden needs
Over the next 7 days, for each square metre of garden in full growth
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One millimetre of rain is one litre of water on one square metre. So the sum is simple: what soil and plants lose to sun and wind, minus the rain that arrives.
Olive groves, vineyards and soil: satellite data in preparation
In Atri this page also shows the vigour of olive groves and vineyards as seen from space and how much countryside is becoming concrete. For Silvi this data is not available yet: it needs satellite images, the land-use map and a check of the area. When it exists, the source will be shown too.
How we compute it, and what it doesn't know
- Forecast: Open-Meteo, which uses the models of national and European weather services. The page reads it on every visit, in your browser: we store nothing.
- Water lost: reference evapotranspiration by the FAO-56 method (Allen et al., FAO 1998), computed by Open-Meteo. A garden in full growth needs about this much; young or freshly transplanted plants use less. Soil, mulch and exposure change the result a lot.
- Cold: this is the minimum temperature 2 metres above ground. On clear, still nights the ground can be a few degrees colder, and the valley floors colder than near the sea. That is why we flag nights at 3 °C or below.
- Limits: it is a forecast, and the further away the day, the less reliable it is. Forecast rain may not come, or may fall elsewhere in the area. The reference point is the centre of the Municipality: Silvi Marina and Silvi Paese have different altitudes and microclimates.