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Rmd | 1443a30 | jens-daniel-mueller | 2020-08-04 | Included gamma values from Clement based on WOA13 |
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Rmd | 7cbc7ec | jens-daniel-mueller | 2020-07-24 | first publish |
library(tidyverse)
library(lubridate)
library(oce)
library(marelac)
library(metR)
library(reticulate)
Currently, following data sets are used for mapping:
Aim is to use WOA18 neutral density instead of WOA13, but calculation still need to be implemented.
variables <- c("salinity", "temperature", "oxygen", "PO4", "silicate")
for (i_variable in variables) {
# i_variable <- variables[2]
# print(i_variable)
temp <- read_csv(
here::here("data/GLODAPv2_2016b_MappedClimatologies/_summarized_files",
paste(i_variable,".csv", sep = "")))
if (exists("GLODAP_predictors")) {
GLODAP_predictors <- full_join(GLODAP_predictors, temp)
}
if (!exists("GLODAP_predictors")) {
GLODAP_predictors <- temp
}
}
rm(temp, i_variable, variables)
WOA18_predictors <-
read_csv(here::here("data/World_Ocean_Atlas_2018/_summarized_files",
"WOA18_predictors.csv"))
WOA18_predictors <- WOA18_predictors %>%
rename(salinity = s_an, temperature = t_an)
WOA13 <-
read_csv(here::here("data/World_Ocean_Atlas_2018/_summarized_files",
"WOA13_mask_gamma.csv"))
WOA13_gamma <- WOA13 %>%
select(-mask)
WOA13_gamma <- WOA13_gamma %>%
rename(lat = latitude, lon = longitude) %>%
mutate(lon = if_else(lon > 180, lon - 360, lon))
rm(WOA13)
basinmask <- read_csv(here::here("data/World_Ocean_Atlas_2018/_summarized_files",
"basin_mask_WOA18.csv"))
all_lm <- read_csv(here::here("data/eMLR",
"all_lm.csv"))
CAVEAT: Coverage of GLODAP climatologies differs slightly for parameters (some are NA in some regions)
Maps of number of observations per horizontal grid cell.
GLODAP_n <- GLODAP_predictors %>%
drop_na() %>%
group_by(lat, lon) %>%
summarise(n = n()) %>%
ungroup()
GLODAP_n %>%
ggplot(aes(lon, lat, fill = n)) +
geom_raster() +
scale_fill_viridis_c(direction = -1) +
coord_quickmap(expand = 0) +
theme(legend.position = "bottom")
rm(GLODAP_n)
WOA13_gamma_n <- WOA13_gamma %>%
drop_na() %>%
group_by(lat, lon) %>%
summarise(n = n()) %>%
ungroup()
WOA13_gamma_n %>%
ggplot(aes(lon, lat, fill = n)) +
geom_raster() +
scale_fill_viridis_c(direction = -1) +
coord_quickmap(expand = 0) +
theme(legend.position = "bottom")
rm(WOA13_gamma_n)
Predictor climatologies are merged. Only horizontal grid cells with at least one observation are kept. Rows with NA values are removed.
predictors <- full_join(GLODAP_predictors, WOA13_gamma)
rm(GLODAP_predictors, WOA13_gamma)
predictors <- predictors %>%
group_by(lat, lon) %>%
mutate(n_oxygen = sum(!is.na(oxygen)),
n_PO4 = sum(!is.na(PO4)),
n_silicate = sum(!is.na(silicate)),
n_salinity = sum(!is.na(salinity)),
n_temperature = sum(!is.na(temperature)),
n_gamma = sum(!is.na(gamma))) %>%
ungroup()
predictors <- predictors %>%
filter(n_oxygen > 0,
n_PO4 > 0,
n_silicate > 0,
n_salinity > 0,
n_temperature > 0,
n_gamma > 0) %>%
select(-c(n_oxygen,
n_PO4,
n_silicate,
n_salinity,
n_temperature,
n_gamma))
predictors <- predictors %>%
drop_na()
min_depth <- 150
min_bottomdepth <- 500
max_lat <- 65
Only mapped variables were taken into consideration which fullfill the same criteria applied to observational data before MLR fitting:
predictors <- predictors %>%
filter(depth >= min_depth)
predictors <- predictors %>%
filter(lat <= max_lat)
predictors <- predictors %>%
group_by(lat, lon) %>%
mutate(bottomdepth = max(depth)) %>%
ungroup()
predictors <- predictors %>%
filter(bottomdepth >= min_bottomdepth) %>%
select(-bottomdepth)
rm(min_depth, max_lat, min_bottomdepth)
Please note that some predictor variables are available outside the WOA18 basin mask, but will be removed for further analysis.
predictors <- inner_join(predictors, basinmask)
rm(basinmask)
Three maps are generated to control succesful merging of data sets.
predictors %>%
ggplot(aes(lon, lat)) +
geom_bin2d(binwidth = c(1,1)) +
scale_fill_viridis_c(direction = -1) +
coord_quickmap(expand = 0) +
theme(legend.position = "bottom")
predictors %>%
filter(depth == 150) %>%
ggplot(aes(lon, lat, fill = PO4)) +
geom_raster() +
scale_fill_viridis_c() +
coord_quickmap(expand = 0) +
theme(legend.position = "bottom") +
labs(title = "150m values")
predictors %>%
filter(depth == 150) %>%
ggplot(aes(lon, lat, fill = gamma)) +
geom_raster() +
scale_fill_viridis_c() +
coord_quickmap(expand = 0) +
theme(legend.position = "bottom") +
labs(title = "150m values")
Likewise, predictor profiles for the North Atlantic (lat = 40.5, lon = -20.5) are plotted to control successful merging of the data sets.
N_Atl <- predictors %>%
filter(lat == 40.5, lon == -20.5)
N_Atl <- N_Atl %>%
pivot_longer(salinity:gamma, names_to = "parameter", values_to = "value")
N_Atl %>%
ggplot(aes(value, depth)) +
geom_path() +
geom_point() +
scale_y_reverse() +
facet_wrap(~parameter,
scales = "free_x",
ncol = 2)
rm(N_Atl)
WOA18 data are currently not used. Code chunks in this section are not executed.
predictors <- full_join(GLODAP_predictors, WOA18_predictors)
rm(GLODAP_predictors, WOA18_predictors)
predictors <- predictors %>%
group_by(lat, lon) %>%
mutate(n_NO3 = sum(!is.na(NO3)),
n_oxygen = sum(!is.na(oxygen)),
n_PO4 = sum(!is.na(PO4)),
n_silicate = sum(!is.na(silicate)),
n_salinity = sum(!is.na(salinity)),
n_temperature = sum(!is.na(temperature))) %>%
ungroup()
predictors <- predictors %>%
filter(n_NO3 > 1,
n_oxygen > 1,
n_PO4 > 1,
n_silicate > 1,
n_salinity > 1,
n_temperature > 1) %>%
select(-c(n_NO3 , n_oxygen , n_PO4 , n_silicate , n_salinity , n_temperature))
predictors %>%
ggplot(aes(lon, lat)) +
geom_bin2d(binwidth = c(1,1)) +
scale_fill_viridis_c(direction = -1) +
coord_quickmap(expand = 0) +
theme(legend.position = "bottom")
predictors %>%
filter(depth == 0) %>%
ggplot(aes(lon, lat, fill = PO4)) +
geom_raster() +
scale_fill_viridis_c() +
coord_quickmap(expand = 0) +
theme(legend.position = "bottom") +
labs(title = "Surface values")
predictors %>%
filter(depth == 0) %>%
ggplot(aes(lon, lat, fill = temperature)) +
geom_raster() +
scale_fill_viridis_c() +
coord_quickmap(expand = 0) +
theme(legend.position = "bottom") +
labs(title = "Surface values")
predictors <- predictors %>%
group_by(lat, lon) %>%
arrange(depth) %>%
mutate(temperature = approxfun(depth, temperature, rule = 2)(depth),
salinity = approxfun(depth, salinity, rule = 2)(depth)) %>%
ungroup()
predictors <- predictors %>%
filter(depth %in% GLODAP_depths)
Currently, the predictor PO4* is calculated according to Clement and Gruber (2018), ie based on oxygen rather than nitrate.
predictors <- predictors %>%
rename(phosphate = PO4) %>%
mutate(phosphate_star = phosphate + (oxygen / 170) - 1.95)
AOU was calculated as the difference between saturation concentration and observed concentration.
CAVEAT: Algorithms used to calculate oxgen saturation concentration are not yet identical in GLODAP data set (fitting) and predictor climatologies (mapping).
predictors <- predictors %>%
mutate(oxygen_sat = gas_satconc(S = salinity,
t = temperature,
P = 1.013253,
species = "O2"),
aou = oxygen_sat - oxygen) %>%
select(-oxygen_sat)
Atl_lon <- 335.5 - 360
predictors %>%
filter(lon == Atl_lon) %>%
ggplot(aes(lat, depth, z = aou)) +
geom_contour_filled() +
scale_fill_viridis_d(name = "AOU") +
guides(fill = guide_colorsteps(barheight = unit(7, "cm"))) +
scale_y_reverse() +
coord_cartesian(expand = 0)
rm(Atl_lon)
slabs_Atl <- c(
-Inf,
26.00,
26.50,
26.75,
27.00,
27.25,
27.50,
27.75,
27.85,
27.95,
28.05,
28.10,
28.15,
28.20,
Inf)
slabs_Ind_Pac <- c(
-Inf,
26.00,
26.50,
26.75,
27.00,
27.25,
27.50,
27.75,
27.85,
27.95,
28.05,
28.10,
Inf)
The following boundaries for isoneutral slabs were defined:
Continuous neutral density (gamma) values based on WOA13 are grouped into isoneutral slabs.
predictors_Atl <- predictors %>%
filter(basin == "Atlantic") %>%
mutate(gamma_slab = cut(gamma, slabs_Atl))
predictors_Ind_Pac <- predictors %>%
filter(basin == "Indo-Pacific") %>%
mutate(gamma_slab = cut(gamma, slabs_Ind_Pac))
predictors <- bind_rows(predictors_Atl, predictors_Ind_Pac)
rm(predictors_Atl, predictors_Ind_Pac, slabs_Atl, slabs_Ind_Pac)
all_lm <- all_lm %>%
select(term, estimate, basin, era, gamma_slab, model)
all_lm <- all_lm %>%
mutate(estimate = if_else(is.na(estimate), 0, estimate))
all_lm_wide <- all_lm %>%
pivot_wider(names_from = era, values_from = estimate,
names_prefix = "coeff_")
all_lm_wide <- all_lm_wide %>%
mutate(JGOFS_GO = coeff_GO_SHIP - coeff_JGOFS_WOCE,
GO_new = coeff_new_era - coeff_GO_SHIP) %>%
select(-c(coeff_JGOFS_WOCE,
coeff_GO_SHIP,
coeff_new_era))
all_lm_long <- all_lm_wide %>%
pivot_longer(JGOFS_GO:GO_new, names_to = "eras", values_to = "delta_coeff")
all_lm_wide <- all_lm_long %>%
pivot_wider(values_from = delta_coeff,
names_from = term,
names_prefix = "delta_coeff_",
values_fill = 0)
rm(all_lm_long, all_lm)
Cant <- full_join(predictors, all_lm_wide)
rm(predictors, all_lm_wide)
Cant <- Cant %>%
mutate(Cant = `delta_coeff_(Intercept)` +
delta_coeff_aou * aou +
delta_coeff_oxygen * oxygen +
delta_coeff_phosphate * phosphate +
delta_coeff_phosphate_star * phosphate_star +
delta_coeff_silicate * silicate +
delta_coeff_salinity * salinity +
delta_coeff_temperature * temperature)
Mean and sd are calculated for Cant in each grid cell (XYZ), basin and era combination. Calculations are performed for all Cant values vs positive values only. This averaging step summarizes the information derived from ten best fitting MLRs.
Cant_model_average <- Cant %>%
mutate(Cant_pos = if_else(Cant < 0, 0, Cant)) %>%
group_by(lon, lat, depth, eras, basin) %>%
summarise(Cant_mean = mean(Cant),
Cant_sd = sd(Cant),
Cant_pos_mean = mean(Cant_pos),
Cant_pos_sd = sd(Cant_pos),
gamma_mean = mean(gamma)) %>%
ungroup()
For each basin and era combination, the zonal mean Cant is calculated, again for all vs positive only values. Likewise, sd is calculated for the averaging of the mean basin fields.
Cant_model_average_zonal <- Cant_model_average %>%
group_by(lat, depth, eras, basin) %>%
summarise(Cant_mean_sd = sd(Cant_mean, na.rm = TRUE),
Cant_mean = mean(Cant_mean, na.rm = TRUE),
Cant_sd_mean = mean(Cant_sd, na.rm = TRUE),
Cant_pos_mean_sd = sd(Cant_pos_mean, na.rm = TRUE),
Cant_pos_mean = mean(Cant_pos_mean, na.rm = TRUE),
Cant_pos_sd_mean = mean(Cant_pos_sd, na.rm = TRUE),
gamma_mean = mean(gamma_mean)) %>%
ungroup()
The mean zonal distribution of neutral densities was calculated. CAVEAT: Binning here does not reflect the isoneutral density slabs used for MLR fitting.
Cant_model_average_zonal %>%
filter(depth <= 4500,
lat > -60) %>%
ggplot(aes(lat, depth, z = gamma_mean)) +
geom_contour_filled(binwidth = 0.25) +
scale_fill_viridis_d(name = "Gamma",
direction = -1) +
scale_y_reverse() +
coord_cartesian(expand = 0) +
guides(fill = guide_colorsteps(barheight = unit(10, "cm"))) +
facet_grid(basin~eras)
Cant_model_average_zonal %>%
filter(depth <= 4500,
lat > -60) %>%
ggplot(aes(lat, depth, z = Cant_mean)) +
geom_contour_fill(breaks = MakeBreaks(5),
na.fill = TRUE) +
scale_fill_divergent(guide = "colorstrip",
breaks = MakeBreaks(5),
name = "Cant") +
scale_y_reverse() +
coord_cartesian(expand = 0) +
guides(fill = guide_colorsteps(barheight = unit(10, "cm"))) +
facet_grid(basin~eras)
Standard deviation across Cant from all MLR models was calculate for each grid cell (XYZ). The zonal mean of this standard deviation should reflect the uncertainty associated to the predictor selection within each slab and era.
Cant_model_average_zonal %>%
filter(depth <= 4500,
lat > -60) %>%
ggplot(aes(lat, depth, z = Cant_sd_mean)) +
geom_contour_filled() +
scale_fill_viridis_d(name = "Cant") +
scale_y_reverse() +
coord_cartesian(expand = 0) +
guides(fill = guide_colorsteps(barheight = unit(10, "cm"))) +
facet_grid(basin~eras)
Standard deviation of mean Cant values was calculate across all longitudes. This standard deviation should reflect the zonal variability of Cant within the basin and era.
Cant_model_average_zonal %>%
filter(depth <= 4500,
lat > -60) %>%
ggplot(aes(lat, depth, z = Cant_mean_sd)) +
geom_contour_filled() +
scale_fill_viridis_d(name = "Cant") +
scale_y_reverse() +
coord_cartesian(expand = 0) +
guides(fill = guide_colorsteps(barheight = unit(10, "cm"))) +
facet_grid(basin~eras)
Cant_model_average_zonal %>%
filter(depth <= 4500,
lat > -60) %>%
ggplot(aes(lat, depth, z = Cant_pos_mean)) +
geom_contour_filled() +
scale_fill_viridis_d(name = "Cant") +
scale_y_reverse() +
coord_cartesian(expand = 0) +
guides(fill = guide_colorsteps(barheight = unit(10, "cm"))) +
facet_grid(basin~eras)
Cant concentration for selected depth levels at which mapping was performed.
mapWorld <- borders("world", colour = "gray60", fill = "gray60")
Cant_model_average %>%
filter(depth %in% c(150, 500, 1000, 3000)) %>%
ggplot(aes(lon, lat, fill = Cant_mean)) +
mapWorld +
geom_raster() +
scale_fill_divergent(guide = "colorstrip",
breaks = MakeBreaks(5),
name = "Cant") +
guides(fill = guide_colorsteps(barheight = unit(10, "cm"))) +
coord_quickmap(expand = 0) +
facet_grid(depth~eras)
To calculate Cant column inventories, we:
Step 2 is performed again for all Cant and positive Cant values only
depth_level_volume <- tibble(
depth = unique(Cant_model_average_zonal$depth))
depth_level_volume <- depth_level_volume %>%
mutate(layer_thickness_above = replace_na((depth - lag(depth)) / 2, 0),
layer_thickness_below = replace_na((lead(depth) - depth) / 2, 0),
layer_thickness = layer_thickness_above + layer_thickness_below) %>%
select(-c(layer_thickness_above,
layer_thickness_below))
Cant_model_average <- full_join(Cant_model_average, depth_level_volume)
rm(depth_level_volume)
Cant_model_average <- Cant_model_average %>%
mutate(Cant_layer = Cant_mean * layer_thickness)
Cant_inventory <- Cant_model_average %>%
filter(depth <= 3000) %>%
mutate(Cant_pos_layer = if_else(Cant_layer < 0, 0, Cant_layer)) %>%
group_by(lon, lat, basin, eras) %>%
summarise(Cant_pos_inventory = sum(Cant_pos_layer, na.rm = TRUE) / 1000,
Cant_inventory = sum(Cant_layer, na.rm = TRUE) / 1000) %>%
ungroup()
Cant_inventory %>%
ggplot(aes(lon, lat, fill = Cant_inventory)) +
mapWorld +
geom_raster() +
scale_fill_divergent(guide = "colorstrip",
breaks = MakeBreaks(5),
name = "Cant") +
guides(fill = guide_colorsteps(barheight = unit(10, "cm"))) +
coord_quickmap(expand = 0) +
facet_wrap(~eras, ncol = 1)
Cant_inventory %>%
ggplot(aes(lon, lat, fill = Cant_pos_inventory)) +
mapWorld +
geom_raster() +
scale_fill_viridis_c(name = "Cant") +
coord_quickmap(expand = 0) +
facet_wrap(~eras, ncol = 1)
Not yet succesfully implemented
GLODAP <- read_csv(here::here("data/GLODAPv2_2020/_summarized_data_files",
"GLODAP_MLR_fitting_ready.csv"))
cruises_meridional <- c("1041")
GLODAP_cruise <- GLODAP %>%
filter(cruise %in% cruises_meridional)
GLODAP_cruise <- GLODAP_cruise %>%
mutate(gamma_calc = swRho(salinity = salinity,
temperature = temperature,
pressure = depth,
longitude = lon,
latitude = lat,
eos = "gsw"))
GLODAP_cruise <- GLODAP_cruise %>%
mutate(gamma_calc = gamma_calc - 1000,
delta_gamma = gamma - gamma_calc)
lat_section <-
GLODAP_cruise %>%
ggplot(aes(lat, depth)) +
scale_y_reverse() +
scale_color_viridis_c() +
theme(legend.position = "bottom")
lat_section +
geom_point(aes(col = gamma))
lat_section +
geom_point(aes(col = gamma_calc))
lat_section +
geom_point(aes(col = delta_gamma))
WOA18_predictors <- WOA18_predictors %>%
rename(LATITUDE = lat,
LONGITUDE = lon,
SALNTY = salinity,
THETA = temperature,
CTDPRS = depth) %>%
mutate(CTDPRS = 1 + CTDPRS/10)
source_python(here::here("analysis/python_scripts",
"Gamma_GLODAP_python.py"))
WOA18_predictors <- calculate_gamma(WOA18_predictors)
Atl_lon <- 335.5 - 360
WOA18_predictors %>%
filter(LONGITUDE == Atl_lon) %>%
ggplot(aes(LATITUDE, CTDPRS, z = GAMMA)) +
geom_contour_filled() +
scale_fill_viridis_d(name = "GAMMA") +
guides(fill = guide_colorsteps(barheight = unit(7, "cm"))) +
scale_y_reverse() +
coord_cartesian(expand = 0)
rm(Atl_lon)
sessionInfo()
R version 4.0.2 (2020-06-22)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 18363)
Matrix products: default
locale:
[1] LC_COLLATE=English_Germany.1252 LC_CTYPE=English_Germany.1252
[3] LC_MONETARY=English_Germany.1252 LC_NUMERIC=C
[5] LC_TIME=English_Germany.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] reticulate_1.16 metR_0.7.0 marelac_2.1.10 shape_1.4.4
[5] oce_1.2-0 gsw_1.0-5 testthat_2.3.2 lubridate_1.7.9
[9] forcats_0.5.0 stringr_1.4.0 dplyr_1.0.0 purrr_0.3.4
[13] readr_1.3.1 tidyr_1.1.0 tibble_3.0.3 ggplot2_3.3.2
[17] tidyverse_1.3.0 workflowr_1.6.2
loaded via a namespace (and not attached):
[1] httr_1.4.2 maps_3.3.0 jsonlite_1.7.0 viridisLite_0.3.0
[5] here_0.1 modelr_0.1.8 assertthat_0.2.1 sp_1.4-2
[9] blob_1.2.1 cellranger_1.1.0 yaml_2.2.1 pillar_1.4.6
[13] backports_1.1.8 lattice_0.20-41 glue_1.4.1 digest_0.6.25
[17] promises_1.1.1 checkmate_2.0.0 rvest_0.3.6 colorspace_1.4-1
[21] plyr_1.8.6 htmltools_0.5.0 httpuv_1.5.4 Matrix_1.2-18
[25] pkgconfig_2.0.3 broom_0.7.0 seacarb_3.2.13 haven_2.3.1
[29] scales_1.1.1 whisker_0.4 later_1.1.0.1 git2r_0.27.1
[33] generics_0.0.2 farver_2.0.3 ellipsis_0.3.1 withr_2.2.0
[37] cli_2.0.2 magrittr_1.5 crayon_1.3.4 readxl_1.3.1
[41] memoise_1.1.0 evaluate_0.14 fs_1.4.2 fansi_0.4.1
[45] xml2_1.3.2 tools_4.0.2 data.table_1.13.0 hms_0.5.3
[49] lifecycle_0.2.0 munsell_0.5.0 reprex_0.3.0 isoband_0.2.2
[53] compiler_4.0.2 rlang_0.4.7 grid_4.0.2 rstudioapi_0.11
[57] rappdirs_0.3.1 labeling_0.3 rmarkdown_2.3 gtable_0.3.0
[61] DBI_1.1.0 R6_2.4.1 knitr_1.29 rprojroot_1.3-2
[65] stringi_1.4.6 Rcpp_1.0.5 vctrs_0.3.2 dbplyr_1.4.4
[69] tidyselect_1.1.0 xfun_0.16