Fog collection, also known as fog harvesting, is the harvesting of water from fog using large pieces of vertical mesh netting to induce the fog-droplets to flow down towards a trough below. The setup
Atrapanieblas or fog collection in Alto Patache, Atacama Desert, Chile
Lafram from the Dar Si Hmad team talking about fog harvesting
A dew pond is an artificial pond usually sited on the top of a hill, intended for watering livestock. Dew ponds are used in areas where a natural supply of surface water may not be readily available.
Fog collection
…where buckets were placed under trees to take advantage of condensation. Several man-made devices such as antique stone piles in Ukraine, medieval dew ponds in southern England and volcanic stone covers on the fields of Lanzarote have all been thought to be possible dew-catching devices. One of the first…
Typical example of downland dew pond near Chanctonbury Ring, West Sussex. 50°53′47″N 0°23′23″W / 50.896293°N 0.389756°W / 50.896293; -0.389756
Dew pond at Cockroost Hill, parish of Portslade, Sussex, showing layer of chalk rubble protecting the lining 50°51′43″N 0°14′12″W / 50.86192°N 0.2367°W / 50.86192; -0.2367
Modern examples made with portland cement need regular repair. Oxteddle Bottom, Sussex 50°52′15″N 0°02′28″E / 50.87075°N 0.04112°E / 50.87075; 0.04112
"Some people say an overhanging tree will help a pond". Dew pond on hill above West Leake Nottinghamshire. 52°50′11″N 1°12′57″W / 52.836462°N 1.215963°W / 52.836462; -1.215963