Last updated: 2020-08-11

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Knit directory: Cant_eMLR/

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library(tidyverse)
library(lubridate)
library(tidync)
library(stars)

1 Data source

2 Read ncdfs

inv_dcant <- tidync(here::here("data/Gruber_2019",
                               "inv_dcant_emlr_cstar_gruber_94-07_vs1.nc"))

dcant <- tidync(here::here("data/Gruber_2019",
                               "dcant_emlr_cstar_gruber_94-07_vs1.nc"))


dcant <-        dcant %>%  activate(DCANT_01)
dcant_tibble <- dcant %>% hyper_tibble()


inv_dcant <- inv_dcant %>%  activate(DCANT_INV01)
inv_dcant_tibble <- inv_dcant %>% hyper_tibble()

3 Cant plots

depth_surface_selection <- c(0)
Atl_lon <- 335.5
Pac_lon <- 190.5

Below, following subsets of the climatologies are plotted for all relevant parameters:

  • Horizontal planes at 0m
  • Meridional sections at longitudes:
    • Atlantic: 335.5
    • Pacific: 190.5

Section locations are indicated as white lines in maps.

Please note that longitudes in the climatologies range from -179.5 - 179.5, which is different from GLODAP mapped climatologies.

3.1 Surface Inventory map

inv_dcant_tibble %>% 
  ggplot(aes(LONGITUDE, LATITUDE, fill = DCANT_INV01)) +
  geom_raster() +
  geom_vline(xintercept = c(Atl_lon, Pac_lon), col = "white") +
  coord_quickmap(expand = 0) +
  scale_fill_viridis_c() +
  theme(legend.position = "top")

3.2 Sections

3.2.1 Atlantic

dcant_tibble %>% 
  filter(LONGITUDE == Atl_lon) %>% 
  ggplot(aes(LATITUDE, DEPTH, z = DCANT_01)) +
  geom_contour_filled() +
  scale_fill_viridis_d(name = "Cant") +
  guides(fill = guide_colorsteps(barheight = unit(7, "cm"))) +
  scale_y_reverse() +
  coord_cartesian(expand = 0)

3.2.2 Pacific

dcant_tibble %>% 
  filter(LONGITUDE == Pac_lon) %>% 
  ggplot(aes(LATITUDE, DEPTH, z = DCANT_01)) +
  geom_contour_filled() +
  scale_fill_viridis_d(name = "Cant") +
  guides(fill = guide_colorsteps(barheight = unit(7, "cm"))) +
  scale_y_reverse() +
  coord_cartesian(expand = 0)

3.3 Write files

dcant_tibble %>% 
  write_csv(here::here("data/Gruber_2019/_summarized_files",
                       "dcant.csv"))

inv_dcant_tibble %>% 
  write_csv(here::here("data/Gruber_2019/_summarized_files",
                       "inv_dcant.csv"))

4 Open tasks

5 Questions

  • Why are there no negative Cant estimates?

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] stars_0.4-3     sf_0.9-5        abind_1.4-5     tidync_0.2.4   
 [5] lubridate_1.7.9 forcats_0.5.0   stringr_1.4.0   dplyr_1.0.0    
 [9] purrr_0.3.4     readr_1.3.1     tidyr_1.1.0     tibble_3.0.3   
[13] ggplot2_3.3.2   tidyverse_1.3.0 workflowr_1.6.2

loaded via a namespace (and not attached):
 [1] httr_1.4.2         jsonlite_1.7.0     viridisLite_0.3.0  here_0.1          
 [5] modelr_0.1.8       assertthat_0.2.1   blob_1.2.1         cellranger_1.1.0  
 [9] yaml_2.2.1         pillar_1.4.6       backports_1.1.8    glue_1.4.1        
[13] digest_0.6.25      promises_1.1.1     rvest_0.3.6        colorspace_1.4-1  
[17] htmltools_0.5.0    httpuv_1.5.4       pkgconfig_2.0.3    broom_0.7.0       
[21] haven_2.3.1        scales_1.1.1       whisker_0.4        later_1.1.0.1     
[25] git2r_0.27.1       generics_0.0.2     farver_2.0.3       ellipsis_0.3.1    
[29] withr_2.2.0        cli_2.0.2          magrittr_1.5       crayon_1.3.4      
[33] readxl_1.3.1       evaluate_0.14      fs_1.4.2           ncdf4_1.17        
[37] fansi_0.4.1        xml2_1.3.2         lwgeom_0.2-5       class_7.3-17      
[41] tools_4.0.2        hms_0.5.3          lifecycle_0.2.0    munsell_0.5.0     
[45] reprex_0.3.0       isoband_0.2.2      compiler_4.0.2     e1071_1.7-3       
[49] RNetCDF_2.3-1      rlang_0.4.7        classInt_0.4-3     units_0.6-7       
[53] grid_4.0.2         rstudioapi_0.11    labeling_0.3       rmarkdown_2.3     
[57] gtable_0.3.0       DBI_1.1.0          R6_2.4.1           ncmeta_0.2.5      
[61] knitr_1.29         rprojroot_1.3-2    KernSmooth_2.23-17 stringi_1.4.6     
[65] parallel_4.0.2     Rcpp_1.0.5         vctrs_0.3.2        dbplyr_1.4.4      
[69] tidyselect_1.1.0   xfun_0.16