Essays about: "vattenflöde"

Showing result 1 - 5 of 34 essays containing the word vattenflöde.

  1. 1. Näringsförluster från sju jordbruksområden nära Mälaren

    University essay from SLU/Dept. of Soil and Environment

    Author : Sally Karlsson Bondesson; [2024]
    Keywords : avrinningsområde; belastning; fosfor; kväve; S-HYPE; retention; typområden på jordbruksmark; vattenflöde; VISS; våtmark;

    Abstract : Ett av Sveriges miljömål är ”ingen övergödning” vilket innebär att gödande ämnen inte ska ha negativ inverkan på människor, biologisk mångfald eller mark-och vattenanvändning (Naturvårds-verket 2023). Näringsämnena fosfor och kväve och förlusten av dessa från framför allt jordbruksmark är en av orsakerna till övergödning i sjöar, hav och vattendrag. READ MORE

  3. 2. Comparison of Particle Tracking and ADCP Including Construction of the Rating Curve at Islandsfallet

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Rasmus Møller Jess; Fredrik Norstedt; [2023]
    Keywords : Rating Curve; Islandsfallet; Fyrisån; Particle Tracking; LSPIV; Fudaa; Hydrology;

    Abstract : The objective of this study is to compare Large-Scale Particle Image Velocimetry (LSPIV) to conventional methods for measuring discharge. Furthermore, to use the discharge data to create a rating curve at Islandsfallet in Uppsala. To measure discharge, on-site measurements have conventionally been done. READ MORE

  4. 3. Modelling the Effects of Climate Change on Future DOC Export to Lake Mälaren Using a Generalized Watershed Loading Functions (GWLF) Model

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Klara Lindqvist; [2022]
    Keywords : Hydrology; DOC; browning; climate change; drinking water production; Mälaren; Hydrologi; DOC; brunifiering; klimatförändringar; dricksvattenproduktion; Mälaren;

    Abstract : Browning of boreal freshwaters due to an increased export of terrestrial dissolved organic carbon (DOC) has been observed for some decennia. Drivers include recovery from acid deposition and changing climate and land cover. READ MORE

  5. 4. Quality and trust in physical model test : Examination by CFD modelling

    University essay from

    Author : Erik Kempe; [2022]
    Keywords : ;

    Abstract : Many of the hydropower dams in Sweden need to be refurbished in order to be able to handle higer design floods. A part of the work in refurbishing the dams is to build physical models. When the physical models are built the uppstream reservoir area is designed to be a couple of times wider and longer than the spillway. READ MORE

  6. 5. Robust automated hydroponicsystem : Constructing an automated hydroponic system forincreased robustness against externaldisturbances

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Jesper Breander; Oscar Häverbring; [2022]
    Keywords : Hydroponics; Nutrient film technique; Urban farming; pH control; PID control; Arduino; Mechatronics; Hydroponisk odling; nutrient film technique; stadsodling; pH styrning; PID kontroll; Arduino; Mekatronik;

    Abstract : The objective of this project is to produce a prototype hydroponic farming solution with improved robustness from external fault factors. This means that the plants will not be grown in soil, but instead in water with a majority of its parameters being monitored and regulated. READ MORE