resdlem
Description
The resdlem python package provides a simple means of incorporating the Daily Lake Evaporation Model (DLEM) equilibrium function into python code.
It simply performs the calculation given the inputs. There is no unit support or other fluf. See below for inputs of the function and the units.
Code Example
from resdlem import equilibrium
devap = equilibrium.dlemEvap(
lat=40,
depth=20,
elev=1000,
solrad=270,
ta=10,
vpd=1,
pres=89651.51985730644,
ut=5,
tw0=10,
fch=1000,
mth=5,
tds=15_000,
alb=0.1)
evap_hs = devap.evap_hs
tw = devap.tw
Function inputs
| variable | Description | Units |
|---|---|---|
| lat | Latitude | degrees |
| depth | Average depth of reservoir (capacity/area) | meter |
| elev | Elevation of water surface | meter |
| solrad | Incoming surface shortwave solar radiation | W m-2 per day |
| ta | Daily average temperature | Celcius |
| vpd | Vapor pressure deficit | kPa |
| pres | Atmospheric Pressure | Pa |
| ut | Wind speed at 2m | m s-1 |
| tw0 | Water temp from previous timestep (tw) | Celcius |
| fch | Fetch length | m |
| mth | Month of interest | NA |
| tds | Total dissolved solids | ppm |
| alb | Water Body Albedo | NA |
Function outputs
| variable | Description | Units |
|---|---|---|
| evap_hs | Evaporation with Heat Storage | mm/day |
| evap_hs_adj | Evaporation with Heat Storage adjusted for total dissolved solids | mm/day |
| evap_nhs | Evaporation no Heat Storage (Penman Evaporation) | mm/day |
| te | Equilibrium Temperature | Celcius |
| tw | Water column temperature at end of timestep | Celcius |
| rn | Net solar radiation | W m-2 per day |
| ierr | Calculation code error (See Error Table) |
Error Table (ierr)
| value | Description |
|---|---|
| 0 | Timestep is good |
| 2 | Depth is less than or equal to 0 |
| 3 | Air temperature is less than wet bulb temperature |
| 4 | Downloading solar radiation is less than 0 |
| 5 | Wind speed is less than 0.01m/s |
| 6 | Vapor Pressure Deficit is less than or euqal to 0 |
| 7 | Vapor pressure deficit is greater than saturated vapor pressure |
Citation
Zhao, B., Huntington, J., Pearson, C., Zhao, G., Ott, T., Zhu, J., Weinberg, A., Holman, K. D., Zhang, S.,Anderson, R., Strickler, M., Cotter, J., Fernando, N., Nowak, K., & Gao, H. (2024).Developing a general Daily Lake Evaporation Model and demonstrating its application inthe state of Texas. Water Resources Research, 60(3), e2023WR036181. Available at https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023WR036181
1 maintainer
Metadata
1 maintainer
Release files for resdlem 0.0.4
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | Provenance | |
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| resdlem-0.0.4.tar.gz | 8.0 kB | Without provenance | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| resdlem-0.0.4-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 15.8 kB
Release files / resdlem-0.0.4.tar.gz
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Release files / resdlem-0.0.4-py3-none-any.whl
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| Tags | Python 3 |
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