Catchment area in the context of "Public safety"

There are eleven metropolitan regions in Germany consisting of the country's most densely populated cities and their catchment areas. They represent Germany's political, commercial and cultural centres. The eleven metropolitan regions in Germany were organised into political units for planning purposes.

Based on a narrower definition of metropolises commonly used to determine the metropolitan status of a given city, only four cities in Germany surpass the threshold of at least one million inhabitants within their administrative borders: Berlin, Hamburg, Munich, and Cologne.

City region is a term used by urbanists, economists and urban planners to refer to how one or more core cities are linked to a hinterland by functional ties, such as economic, housing-market, commuting, marketing or retail catchment factors. This concept emphasizes the importance of these functional relationships in understanding urban areas and their surrounding regions, often providing more insightful perspectives than the arbitrary boundaries assigned to administrative bodies.

The Tsauchab is an ephemeral river in the Hardap Region of central Namibia. Its source is in the southern Naukluft Mountains, from where it flows westwards through the Namib-Naukluft National Park into Sossusvlei, an endorheic basin. The lower river has in the past had a slightly different courses and also formed two other basins, the Deadvlei and the Hiddenvlei.

The Tsauchab is approximately 150 km (93 mi) long, its catchment area (including its tributary, the Zebra River) is estimated to be between 4,000 and 4,431 km (1,711 sq mi). Since it is in the Namib Desert, the Tsauchab carries water only during the rare times when rain falls in the Naukluft Mountains and runs off, since it cannot seep into the soil fast enough (see flash flood). During these rains, the Tsauchab becomes a rapid-running, strong river within a matter of hours. As a result of the occasional rains, it has over the past two million years carved the Sesriem Canyon, a 1 km (0.62 mi) long and up to 30 m (98 ft) deep canyon in sedimentary rock. Past the canyon, the Tsauchab flattens and grows broader, and is surrounded by a riparian forest as it slopes towards the Sossusvlei salt pan. In the Sossusvlei area, the riparian forest consists of both the living trees including Maerua crassifolia and the remaining skeletons of dead trees.

The district courts of Sweden (Swedish: tingsrätt) are the court of first instance for the general courts in Sweden. The next instance are the courts of appeal (hovrätt). The district court handle criminal cases, some civil law disputes and a number of non-contentious matters. There are 48 district courts across Sweden, and the catchment area is based on the geographic boundaries of several municipalities. The number of employees vary, from ten to several hundreds.

The Freiberger Mulde (also called the Östliche Mulde or Eastern Mulde; Czech: Freiberská Mulda) is the right-hand, 124-kilometre-long (77 mi) headstream of the river Mulde, whose catchment covers an area of 2,981 km (1,151 sq mi) in the Czech Republic and Germany in central Saxony. It has a volumetric flow of 35.3 m/s (1,250 cu ft/s) which is greater than that of the other headstream, the Zwickauer Mulde (or Westliche Mulde or Western Mulde) who flow is about 26.4 m/s (930 cu ft/s), which is nevertheless the longer stream.

The source of the river is in the Ore Mountains, near Moldava, in the Czech Republic. It runs northwest, crossing the border with Germany after a few kilometers, to Freiberg (hence the name), and further northwest through Nossen, Döbeln and Leisnig. A few kilometers north of Colditz, the Freiberger Mulde is joined by the Zwickauer Mulde to form the Mulde. The Mulde is a tributary of the Elbe.

The Aksu (Bronze Age name in Hittite: 𒁉𒋻𒀀𒅀, Kaštaraya, ancient name in Greek Κέστρoς, Kestros), is a river in Antalya Province (southwestern Turkey), which rises in the mountains of Toros. The course of the Aksu is between the Düden to the west and of the Köprüçay to the east. It discharges into the Mediterranean near the city of Antalya. The river is about 145 km long and has a total catchment area of 3652 km. There are several lakes in its catchment area, including Lake Kovada and the reservoirs created by the Karacaören-1 and Karacaören-2 Dams.

The Aksu is primarily fed by karstic springs in the Taurus Mountains. In contrast to the many seasonal streams in the region, the Aksu flows year-round, although its volume can fluctuate dramatically throughout the year. For example, its flow was measured in 1942 to be 250 m/s in January and 7.5 m/s during the summer. Like other karstic streams, the Aksu does not carry much sediment with it.

The Mourne Wall (Irish: Balla an Mhúrn) was constructed to enclose a catchment area of the Silent Valley Reservoir in the Mourne Mountains, Northern Ireland. The 1.5 m (4 ft 11 in) high stone wall, which was built to keep livestock from contaminating water supplies, took almost twenty years to complete (1904 to 1922). The project was overseen by the Belfast City and District Water Commissioners.