PModel (Aedes Albopictus)
1. Overview
Model name: am_aedes_albopictus
Description: am_aedes_albopictus is as climate-driven model designed to...
Key features
- Uses climate and population datasets as inputs.
- Implements a system of differential equations representing mosquito development, mortality, and hatching rates.
- Outputs gridded estimates of adult mosquito abundance in NetCDF4 format.
Reference Publication:
2. Quickstart
How to run the model
-
Locate the file
src/heiplanet_models/global_settings.yaml. -
Modify the path where you have the data, for instance:
ingestion: path_root_datasets: "data/in/" - Run the Python script
src/heiplanet_models/Pmodel/run_model.pypython run_model.py
3. Model Architecture
Inputs
| Dataset | Description | Format |
|---|---|---|
| ERA5Land Temperature | Gridded temperature data | NetCDF4 |
| ERA5Land Precipitation | Gridded precipitation | NetCDF4 |
| Human population | Population distribution | NetCDF4 |
| Initial conditions (opt) | Starting model state | NetCDF4 |
Outputs
| Dataset | Description | Format |
|---|---|---|
| Mosquito Abundance | Gridded mosquito abundance for the Aedes Albopictus specie | NetCDF4 |
Workflow
You can find a dataflow diagram here.
4. Mathematical Model
Description
Six stage differential equation model
-
Three aquatic stages:
- Egg \(E\)
- Diapaussing egg \(E_{\text{dia}}\)
- Juvenile stage (Larval stage + Pupal stage)
-
Three aerial stages:
- Emerging adult \(A_{\text{em}}\)
- Blood fed adults \(A_{b}\)
- Ovipositing adults \(A_{0}\)
System of Equations
| Differential Equation |
|---|
| \(\dot{E} = \beta(T)(1-\omega(\overline{T}, \overline{S}))M - Q(W,P)\delta_{E}(T)E - m_{E}(T)E\) |
| \(\dot{E_{\text{dia}}} = \delta_{E}(T)\omega(\overline{T}, \overline{S})E_{\text{dia}} - \sigma(\overline{T},S)Q(W,P)\delta_{E}(T)E_{\text{dia}} - m_{Ed}(T)E_{\text{dia}}\) |
| \(\dot{J} = Q(W,P)\delta_{E}(T)E + \sigma(\overline{T},S)Q(W,P)\delta_{E}(T)E_{\text{dia}} - \delta_{J}(T)J - \left( \frac{J}{K_{J}(W,P)} + m_{J}(T) \right)J\) |
| \(\dot{A_{\text{em}}} = \frac{1}{2}\delta_{J}(T)J - \delta_{A_{\text{em}}}(T)A_{\text{em}} - m_{A}(T)A_{\text{em}}\) |
| \(\dot{A_{b}} = \delta_{A_{\text{em}}}(T)A_{\text{em}} + \delta_{A_{o}}A_{o} - \left( m_{A}(T) + r + \delta_{A_{b}}(T) \right)A_{b}\) |
| \(\dot{A_{o}} = \delta_{A_{b}}(T)A_{b} - \left( m_{A}(T) + r + \delta_{A_{o}}A_{o} \right)\) |
Variables and Parameters
State Variables
| Variable | Description | Units |
|---|---|---|
| \(E\) | Egg population | individuals |
| \(E_{\text{dia}}\) | Diapaussing egg population | individuals |
| \(J\) | Juvenile population (larvae + pupae) | individuals |
| \(A_{\text{em}}\) | Emerging adult population | individuals |
| \(A_{b}\) | Blood fed adult population | individuals |
| \(A_{o}\) | Ovipositing adult population | individuals |
Environmental Inputs
| Variable | Description | Units |
|---|---|---|
| \(T\) | Temperature | °C |
| \(S\) | Photoperiod (day-light length). Using Forsythe model | hours |
| \(W\) | Precipitation/Rainfall | mm |
| \(P\) | Human population density | people/km² |
| \(\overline{T}\) | Mean temperature over previous 7 days | °C |
| \(\overline{S}\) | Mean day-light over previous 7 days | hours |
Additional equations
| Parameter | Description | Function | Units |
|---|---|---|---|
| \(\underline{S}\) | unknown probably a typo |
unknown |
unknown |
| \(\underline{T}\) | unknown probably a typo |
unknown |
unknown |
Equations
| Number | Function | Description | Units |
|---|---|---|---|
| 1 | \(\beta(T)\) | Egg per female per day | 1/day |
| 2 | \(\omega(\overline{T}, \overline{S})\) | Diapausing egg proportion | NA |
| 3 | \(Q(W,P)\) | Hatching fraction depending in human density and rainfall | NA |
| 4 | \(\delta_{E}(T)\) | Egg development rate | 1/day |
| 5 | \(m_{E}(T)\) | Egg mortality rate | 1/day |
| 6 | \(\sigma(\overline{T}, S)\) | Spring hatching rate | 1/day |
| 7 | \(m_{Ed}(T)\) | Diapausing egg mortality rate | 1/day |
| 8 | \(\delta_{J}(T)\) | Juvenile development rate | 1/day |
| 9 | \(K_{J}(W,P)\) | Juvenile Carrying Capacity | NA |
| 10 | \(m_{J}(T)\) | Juvenile Mortality rate | 1/day |
| 11 | \(\delta_{A_{em}}(T)\) | Emerging adult development rate | 1/day |
| 12 | \(m_{A}(T)\) | Adult Mortality rate | 1/day |
| 13 | \(\delta_{A_{o}}\) | Subsequent blood meal rate after oviposition | 1/day |
| 14 | \(r\) | Mortality rate associated with long distance travel and search behavior | 1/day |
| 15 | \(\delta_{A_{b}}(T)\) | Blood fed adult development rate | 1/day |
| 16 | \(f(X)\) | Sigmoidal "step-function" | dimensionless |
| 17 | \(\check{S}_{a}\) | Critical day-light length in autumn | hours |
| 18 | \(\check{T}_{D}\) | Critical diapause temperature (°C) | °C |
| x | \(M\) | unknown |
unknown |
1. Egg per female per day
Description: put a description here to improve or change the docstrings.
| Constant | Description | Typical Value |
|---|---|---|
| \(k1\) | --- | -0.0163 |
| \(k2\) | --- | 1.289 |
| \(k3\) | --- | -15.837 |
2. Diapausing egg proportion
Description: put a description here to improve or change the docstrings.
Warning
The LaTeX equation derived from the Octave code should appear as follows.
| Constant | Description | Typical Value |
|---|---|---|
| \(k1\) | --- | 0.5 |
3. Hatching fraction depending in human density and rainfall
Description: put a description here to improve or change the docstrings.
| Constant | Description | Typical Value |
|---|---|---|
| \(E_{\text{opt}}\) taken from octave code water_hatch.m | --- | 8 |
| \(E_{\text{var}}\) taken from octave code water_hatch.m | --- | 0.05 |
| \(E_{\text{0}}\) taken from octave code water_hatch.m | --- | 1.5 |
| \(E_{\text{rat}}\) taken from octave code water_hatch.m | --- | 0.02 |
| \(E_{\text{dens}}\) taken from octave code water_hatch.m | --- | 0.01 |
| \(E_{\text{fac}}\) taken from octave code water_hatch.m | --- | 0.01 |
4. Egg development rate
Description: put a description here to improve or change the docstrings.
| Constant | Description | Typical Value |
|---|---|---|
| \(k1\) | --- | 0.5070 |
| \(k2\) | --- | 30.85 |
| \(k3\) | --- | 12.82 |
5. Egg mortality rate
Description: put a description here to improve or change the docstrings.
| Constant | Description | Typical Value |
|---|---|---|
| \(k1\) | --- | 0.955 |
| \(k2\) | --- | 0.5 |
| \(k3\) | --- | 18.8 |
| \(k4\) | --- | 21.53 |
6. Spring hatching rate
Description: put a description here to improve or change the docstrings.
Warning
The LaTeX equation derived from the Octave code should appear as follows.
| Constant | Description | Typical Value |
|---|---|---|
| \(k1\) | --- | 0.1 |
7. Diapausing egg mortality rate
Description: put a description here to improve or change the docstrings.
Warning
The constants in the code are different than constants reported on the paper.
| Constant | Description | Typical Value |
|---|---|---|
| \(k1\) | --- | 0.955 |
| \(k1\) | --- | 0.5 |
| \(k3\) | --- | 18.8 |
| \(k4\) | --- | 21.53 |
8. Juvenile development rate
Description: put a description here to improve or change the docstrings.
| Constant | Description | Typical Value |
|---|---|---|
| \(k1\) | --- | 0.08 |
| \(k2\) | --- | -4.89 |
| \(k3\) | --- | 83.85 |
9. Juvenile carrying capacity
Description: put a description here to improve or change the docstrings.
| Constant | Description | Typical Value |
|---|---|---|
| \(\lambda\) | Scaling factor of carrying capacity | \(10^6\) |
| \(t\) | --- | - |
| \(\alpha_{\text{rain}}\) | Weight for rainfall contribution | \(10^{-3}\) |
| \(W(x)\) | Rainfall at time step \(x\) | - |
| \(\alpha_{\text{dens}}\) | Weight for population contribution | \(10^{-5}\) |
| \(P(x)\) | Humand density population at time step \(x\) | - |
| \(\gamma\) taken from octave code capacity.m | --- | 0.9 |
10. Juvenile mortality rate
Description: put a description here to improve or change the docstrings.
Warning
Equation in paper do not show the exponential function \(exp()\). However, the exponential function is used in the Octave code.
| Constant | Description | Typical Value |
|---|---|---|
| \(k1\) | --- | 0.977 |
| \(k2\) | --- | 0.5 |
| \(k3\) | --- | 21.8 |
| \(k4\) | --- | 16.6 |
11. Emerging adult development rate
Description: put a description here to improve or change the docstrings.
| Constant | Description | Typical Value |
|---|---|---|
| \(k1\) | --- | 0.069 |
| \(k2\) | --- | 3.574 |
| \(k3\) | --- | 50.1 |
12. Adult mortality rate
Description: put a description here to improve or change the docstrings.
Warning
The equation reported on paper do not show the exponential \(exp()\) found in the Octave/Matlab code. Additionally the equation in Octave should look like this.
Warning
\(T_{\text{mean}}\) is mentioned here for first time. The possible description about this process is this one:
"Daily time-step simulations are used to solve the model. The resulting output is first aggregated to monthly time steps and then further aggregated to yearly values. To represent diurnal temperature variation, the simulation for each day is divided into 100 time steps according to the numerical solver used (the deSolve package in R), ranging from 0.14, 0.19, …, up to 24.00 hours. The temperature at each of these time points is used to simulate daily development and mortality rates. For additional details on the simulation procedure and a simple example of the model implementation in Octave (v4.2.1), see Metelmann et al.⁵˒¹⁸. Finally, spatial aggregation at the NUTS-3 level (Europe) was performed in R version 4.1 using the raster package."
| Constant | Description | Typical Value |
|---|---|---|
| \(k1\) | --- | 0.677 |
| \(k2\) | --- | 0.5 |
| \(k3\) | --- | 20.9 |
| \(k4\) | --- | 13.2 |
| \(k5\) | --- | 0.1 |
13. Subsequent blood meal rate after oviposition
Description: put a description here to improve or change the docstrings.
| Constant | Description | Typical Value |
|---|---|---|
| \(k_{1}\) | --- | 0.1 |
14. Mortality rate associated with long distance travel and search behavior
Description: put a description here to improve or change the docstrings.
| Constant | Description | Typical Value |
|---|---|---|
| \(k_{1}\) | --- | 0.8 |
15. Blood fed adult development rate
Description: put a description here to improve or change the docstrings.
| Constant | Description | Typical Value |
|---|---|---|
| \(k_{1}\) | --- | 10 |
| \(k_{2}\) | --- | 77 |
| \(k_{3}\) | --- | 0.2 |
16. Sigmoidal "step function"
Description: put a description here to improve or change the docstrings.
| Constant | Description | Typical Value |
|---|---|---|
| \(k_{1}\) | --- | 20 |
17. Critical day-light length in autumn
Description: put a description here to improve or change the docstrings.
| Constant | Description | Typical Value |
|---|---|---|
| \(k_{1}\) | --- | 10.058 |
| \(k_{2}\) | --- | 0.08965 |
18. Critical diapause temperature (°C)
Description: put a description here to improve or change the docstrings.
| Constant | Description | Typical Value |
|---|---|---|
| \(k_{1}\) | --- | 21 |
x. unknown 1
Description: put a description here to improve or change the docstrings.
Warning
This M appears in the Egg \(E\) differential equation; however, it is not listed in Table S11 of Supplementary material.
Equations
Warning
This is just a demo table.
| Stage | Symbol | Description | Python Function | Units |
|---|---|---|---|---|
| Birth | \(\omega(\underline{T}, \underline{S})\) | Diapausing egg proportion | mosq_dia_lay |
N/A |
| Birth | \(\sigma(\underline{T}, S)\) | Spring hatching rate | mosq_dia_hatch |
\(\frac{1}{day}\) |
| Birth | \(Q(W,P)\) | Hatching fraction (rainfall & population) | water_hatching |
N/A |
| Development | \(K_L(W,P)\) | Juvenile carrying capacity | carrying_capacity |
N/A |
| Development | \(\delta_J(T)\) | Juvenile development rate | mosq_dev_j |
\(\frac{1}{day}\) |
| Development | \(\delta_{Aem}(T)\) | Emerging adult development rate | mosq_dev_i |
\(\frac{1}{day}\) |
| Mortality | \(m_E(T)\) | Egg mortality rate | mosq_mort_e |
\(\frac{1}{day}\) |
| Mortality | \(m_J(T)\) | Juvenile mortality rate | mosq_mort_j |
\(\frac{1}{day}\) |
| Mortality | \(m_A(T_{mean})\) | Adult mortality rate | mosq_mort_a |
\(\frac{1}{day}\) |
5. Examples
TODO: Add some plots
Authors & Contact
Here is a markdown table template for author information:
| Author | GitHub Username | Affiliation | |
|---|---|---|---|
| Robert Koch | @rkochdeutschland | robert.koch@koch-institute.de | Robert Koch Institute |
[LegacyCode]
Workflow description
a. Entry point name: aedes_albopictus_model.m
-
Create variables to assign the prefix of each dataset that will be used
tmean_prefix = 'ERA5land_global_t2m_daily_0.5_'; pr_prefix = 'ERA5land_global_tp_daily_0.5_'; dens_prefix = 'pop_dens_'; -
Create a
forloop to iterate over years. The following operations are done in each loop:a. The name for each dataset is completed with the year and extension:
tmean = [tmean_prefix, num2str(years), '.nc']; pr = [pr_prefix, num2str(years), '.nc']; dens = [dens_prefix, num2str(years), '_global_0.5.nc'];b. Log the year that is being processed:
year = years; % change years according to file name disp(['Year in Process: ', num2str(years)]);c. Run the model that calculates the differential equations. This model receives the following datasets and variable:
- dataset
tmean: mean temperature dataset - dataset
pr: precipitation dataset - dataset
dens: population density dataset - variable
year: year of the dataset
3. End the program%model_run(tmax,tmin,tmean, pr,dens,year); model_run(tmean, pr,dens,year); % for tmean only with NO DTR (Tmax or Tmin is not present) disp(['Year done: ', num2str(years)]); - dataset
b. Name: model_run.m
- Create a variable name for the output file.
outfile = strcat('Mosquito_abundance_Global_', num2str(year), '.nc') % change the output file name as required if exist(outfile) == 2 delete(outfile) end - Copy the dataset that contains the precipitation (one of the ERA5*.nc) and store this copy using the variable name for the output file.
copyfile(pr, outfile); % overwriting the file gives us advantage that we can loose the ;latitude and longitude information of Tmax, % Tmin file and only work with time varible in 3rd dimension and then rewrite this over same nc file -
Rename the internal variable (
pr) of this copy with the nameadults. It means, we have a new .nc file that containslongitude,latitudeand the variable nameadults. With this we can just overwrite the variable adult with the calculations we intend to do.ncid = netcdf.open(outfile,'NC_WRITE'); netcdf.reDef(ncid) netcdf.renameVar(ncid,3,'adults'); netcdf.endDef(ncid); netcdf.close(ncid); -
Defines a delta time step that will be important for solving the system of differential equations.
step_t = 10; -
Load variables from each dataset involved (
tmean,pr,dens)a. Load temperature variables and applies some preprocessing steps with
load_temp2(tmean, step_t)function[Temp, Tmean] = load_temp2(tmean, step_t); % Without DTR if Tmean is only available, no Tmax or Tminb. Load population density variables and applies some preprocessing steps with
load_hdp(dens)DENS = load_hpd(dens);c. Load Precipitation variable with
load_rainfall(pr)functionPR = load_rainfall(pr);d. Load Latitude variable from the
tmeandataset with the functionload_latitude(tmean)LAT = load_latitude(tmean); -
Calculate Juvenile Carrying Capacity: \(K_{L}(W,P)\)
-
\(W\): Rainfall accumulation, this the information we get from
PR -
\(P\): Human density, this is the information we get from
DENS
CC = capacity(PR, DENS);- file associated: `capacity.m` - Equation in Supplement Information: 14 -
-
Calculate Hatching fraction depending in human density and rainfall: \(Q(W,P)\) $$ Q(W,P) = (1 - E_{rat}) \left( \frac{(1+E_{0})e^{\left(-E_{var}(W(t)-E_{opt})\right)^2}}{e^{\left( -E_{var} (W(t)-E_{opt})^2 \right)}} \right) + E_{rat} \left( \frac{E_{dens}}{E_{dens} + e^{-E_{fac}P}} \right) $$
Where:
-
\(W\): Precipitation, we get this information from
PR -
\(P\): Human density, we get this information from
DENS - \(E_{opt}\) = 8;
- \(E_{var}\) = 0.05;
- \(E_{0}\) = 1.5;
- \(E_{rat}\)= 0.2;
- \(E_{dens}\) = 0.01;
- \(E_{fac}\) = 0.01;
- file associated:egg_active = water_hatch(PR, DENS);water_hatch.m- Equation in Supplementary Information: 13 -
-
Create a Vector Initial population: \(V_{0}\)
previous = 'no_previous'; v0 = load_initial(previous, size(Temp));- File associated:
load_initial.m - TODO: Ask about the name and meaning of this variable.
- File associated:
-
Calculate the parameters for each time step and run ODEs
v = call_func(v0, Temp, Tmean, LAT, CC, egg_active, step_t);Input variables:
- initial vector:
v0 - temperature:
Temp - mean temperature:
Tmean - latitude:
LAT - juvenile carrying capacity:
CC - hatching fraction depending in human density and rainfall:
egg_active - time step:
step_time -
File associated:
call_func.m -
Once all the variables are calculated, write to the output file.
ncwrite(outfile,'adults', permute(v(:,:,5,:),[1,2,4,3]));
- initial vector:
c. Name: call_func.m
Description: This file the main file that contains the ODEs to calculate the 6 differential equations proposed in the paper.
Input Variables:
vTempTmeanLATCCegg_activatestep_t
Process:
-
Calculate the Diapause Lay
- File associated:
mosquito_dia_lay.m - TODO: ask about the equation.
- File associated:
-
Calculate the Diapause Hatch
- File associated:
mosquito_dia_hatch.m - TODO: ask about the equation
- File associated:
-
Calculate Diapausing egg mortality rate : \(m_{Ed}(T)\) $$ m_{Ed}(T) = -\ln\left( 0.955 \left(-0.5 \left(\frac{T-18.8}{21.53}\right)^6 \right) \right) $$
- Input Variables:
Tempstep_t
- File associated:
mosq_surv_ed.m - Comments: hardcoded values do not correspond to the values in the paper.
- Input Variables:
-
Create a n-dimensional matrix
v_outfull of zeros. -
Create a for loop that iterates over the time:
5.1. Creates a temperatures vector
T = Temp(:,:,t);5.2. Calculates the Mosquito Birth
birth = mosq_birth(T);- Inputs:
T
-
File associated:
mosq_birth.m -
Comments:
- TODO: This equation is not present in the suplement material.
5.3. Calculates the Mosquito development j
- Inputs:
T
- File associated:
mosq_dev_j.m - Comments:
- TODO: This equation is not present in the suplement material.
dev_j = mosq_dev_j(T);5.4. Calculates the Mosquito development i
- Inputs:
T
- File associated:
mosq_dev_i.m - Comments:
- TODO: This equation is not present in the suplement material.
dev_j = mosq_dev_i(T);5.4. Other calculations
dev_e = 1./7.1; %original function of the model dia_lay = diapause_lay(:,:,ceil(t/step_t)); dia_hatch = diapause_hatch(:,:,ceil(t/step_t)); ed_surv = ed_survival(:,:,t); water_hatch = egg_activate(:,:,ceil(t/step_t)); mort_e = mosq_mort_e(T); mort_j = mosq_mort_j(T); T = Tmean(:,:,ceil(t/step_t)); mort_a = mosq_mort_a(T);5.5. ODE
vars = {ceil(t/step_t), step_t, Temp, CC, birth, dia_lay, dia_hatch, mort_e, mort_j, mort_a, ed_surv, dev_j, dev_i, dev_e, water_hatch}; v = RK4(@eqsys, @eqsys_log, v, vars, step_t); % Runge-Kutta 4 method % v = FE(@eqsys, @eqsys_log, v, vars, step_t); % Forward Euler method5.6. Additional calculations
if mod(t/step_t,365) == 200 v(:,:,2) = 0; end if mod(t,step_t) == 0 if mod(ceil(t/step_t),30) == 0 disp(['MOY: ', num2str(t/step_t/30)]); end for j = 1:5 %v_out(:,:,j,t/step_t) = v(:,:,j); v_out(:,:,j,t/step_t) = max(v(:,:,j), 0); % if any abundance is negative it will make it zero end end
- Inputs:
Table 1. Mapping Equations from Octave/Matlab code to Python code
Note
Numbers in brackets refer to the corresponding row numbers in Table S11 from the Supplementary Material.
| Octave Function | Python Function | Equation Number in Paper |
|---|---|---|
mosq_dev_j.m |
mosq_dev_j |
[5] |
mosq_dev_i.m |
mosq_dev_i |
[6] |
mosq_dev_e.m |
mosq_dev_e |
[NR 1] |
capacity.m |
carrying_capacity |
[14] |
mosq_mort_e.m |
mosq_mort_e |
[9] |
mosq_mort_j.m |
mosq_mort_j |
[10] |
mosq_mort_a.m |
mosq_mort_a |
[11] |
mosq_surv_ed.m |
mosq_surv_ed |
[NR 2] |
mosq_birth.m |
mosq_birth |
[NR 3] |
mosq_dia_hatch.m |
mosq_dia_hatch |
[3] |
mosq_dia_lay.m |
mosq_dia_lay |
[2] |
water_hatch.m |
water_hatching |
[13] |
Table 2. Climate sensitive parameter description and functions (inspired on Table S11 in Supplementary information)
Warning
Put special attention to the Not Reported ([NR <number>]) equations and the Not Reported units ([NA]).
| Number | Description | Symbol | Unit |
|---|---|---|---|
| [5] | Juvenile development rate | \(\delta_{J}(T)\) | \(\frac{1}{day}\) |
| [6] | Emerging adult development | \(\delta_{Aem}(T)\) | \(\frac{1}{day}\) |
[NR 1] |
(tentative) Emerging adult development Briere model. | [NR 1] |
|
| [14] | Juvenile carrying capacity | \(K_{J}(W,P)\) | NA |
| [9] | Egg mortality rate | \(m_{E}(T)\) | \(\frac{1}{day}\) |
| [10] | Juvenile mortality rate | \(m_{J}(T)\) | \(\frac{1}{day}\) |
| [11] | Adult mortality rate | \(m_{A}(Tmean)\) | \(\frac{1}{day}\) |
[NR 2] |
(tentative) Diapausing egg mortality rate | \(\frac{1}{day}\) | |
[NR 3] |
Not reported |
Not reported |
[NR 3] |
| [3] | (tentative) Spring hatching rate | \(\sigma(\underline{T},S)\) | \(\frac{1}{day}\) |
| [2] | (tentative) Diapausing egg proportion | \(\omega(\underline{T}, \underline{S})\) | NA |
| [13] | Hatching fraction depending in human density and rainfall | \(Q(W,P)\) | NA |
List of equations to understand mapping between code and paper
-
[5] Juvenile development rate: \(\delta_{J}(T)\) $$ \delta_{J}(T) = \frac{1}{0.08T^{2} - 4.89T + 83.85} $$
Parameter Description \(T\) Temperature (°C) -
[6] Emerging adult development rate: $$ \delta_{Aem}(T) = \frac{1}{0.069T^{2} - 3.574T + 50.1} $$
Parameter Description \(T\) Temperature (°C) -
[NR 1](tentative) Emerging adult development Briere model $$ BM = q \cdot T \cdot (T - T_0) \cdot \sqrt{T_m - T} $$Parameter Description \(q\) Empirical coefficient for development rate \(T\) Temperature (°C) \(T_0\) Minimum threshold temperature (°C) \(T_m\) Maximum threshold temperature (°C) -
[14] Juvenile carrying capacity: $$ K_{J}(W,P) = \lambda\,\frac{0.1}{1 - 0.9^{t}}\sum_{x=1}^{t} 0.9^{(t-x)}\left(\alpha_{\text{rain}}W(x) + \alpha_{\text{dens}}P(x)\right) $$
Parameter Description \(\lambda\) Scaling coefficient \(t\) --- \(x\) --- \(\alpha_{\text{rain}}\) Weight for rainfall contribution \(W(x)\) Rainfall at time step \(x\) \(\alpha_{\text{dens}}\) Weight for population contribution \(P(x)\) Population at time step \(x\) -
[9] Egg mortality rate:
Warning
Equation in paper do not show the exponential function \(exp()\). However, the exponential function is used in the Octave code.
| Parameter | Description |
|---|---|
| \(T\) | Temperature (°C) |
- [10] Juvenile mortality rate:
Warning
Equation in paper do not show the exponential function \(exp()\). However, the exponential function is used in the Octave code.
| Parameter | Description |
|---|---|
| \(T\) | Temperature (°C) |
- [11] Adult mortality rate:
Warning
The equation reported on paper do not show the exponential \(exp()\) found in the Octave/Matlab code. Additionally the equation in Octave should look like this.
| Parameter | Description |
|---|---|
| \(T_{\text{mean}}\) | Temperature (°C) |
[NR 2](tentative) Diapausing egg mortality rate:
Warning
The constants in the code are different than constants reported on the paper.
| Parameter | Description |
|---|---|
| \(T\) | Temperature (°C) |
[NR 3]
Warning
Missing name
The following formula has been deducted from octave code
- [3] Spring hatching rate
Warning
The equation in Octave should look like this.
| Parameter | Description |
|---|---|
| \(\check{T}\) | missing description |
| \(\underline{T}\) | missing description |
| \(\check{S}_{s}\) | Critical day-light length in spring (hours) |
| \(S\) | Day-light (hours) |
- [2] (tentative) Diapausing egg proportion
Warning
The equation in Octave should look like this.
| Parameter | Description |
|---|---|
| \(\underline{T}\) | missing description |
| \(\underline{S}\) | missing description |
| \(\check{S}_{a}\) | Critical day-light length in autumn, \(\check{S}_{a}=10.058+0.08965 \times Latitude(degrees)\) (hours) |
| \(\check{T}_{D}\) | Critical diapause temperature (°C) |
- [13] Hatching fraction depending in human density and rainfall:
| Constants | Description |
|---|---|
| \(W\) | Precipitation or Rainfall (mm) |
| \(P\) | Human population density (\(\frac{\text{people}}{\text{km}^2}\)) |