meetings Link to heading

  • 13-nov-2023 Report current progress, the equations.
  • 30-oct-2023 Confirm the loop and add source of water.
  • 27-oct-2023 Start from simple loop and steps for information gathering.

13-nov-2023 Link to heading

  • It should begin about 0800 and is only for 1 hour.
  • The difference between water consumption and water utilization is now clear.
  • Find information about
    • For different products are there several paths between two main elements, or
    • There are different CLD for each product.
  • In firts two week of Dec will to Aus and progress report will be delivered online.

30-oct-2023 Link to heading

  • Increasing loop → balancing loop.
  • Equations: ETo for various types of crop, individual water need per time duration,
  • Describe activities related to WU and WC to differ them.

27-oct-2023 Link to heading

  • A balancing loop from four variables (WC, WS, WD, WU).

    SymbolDescription
    WCWater Consumption
    WSWater Supply
    WDWater Demmand
    WUWater utilization
    flowchart LR WS --"(➕)"---> WD WD --"(➕)"---> WU WU --"(➕)"---> WC WC --"(➖)"---> WS WC(["WC"]) WS(["WS"]) WD(["WD"]) WU(["WU"]) linkStyle default color:magenta

  • Relations (ideal)

    • ${\rm WD} = f_1({\rm WS})$
    • ${\rm WU} = f_2({\rm WD})$
    • ${\rm WC} = f_3({\rm WU})$
    • ${\rm WS} = f_4({\rm WC})$

  • Literature study

    • Good: There are $f_1$, $f_2$, $f_3$, $f_4$.
    • Medium:
      • There data, e.g. $\rm WD$ vs $\rm WS$.
      • Then related fitting function, e.g. ${\rm WD} = f_1({\rm WS})$, can be created.
    • Not good: Descriptive and qualitative statement or opinion about relation between parameters, e.g. $\rm WD$ vs $\rm WS$, based on years of experience.

refs Link to heading

files Link to heading