Sea Surface Temperature Anomaly
Marguerite Larriere & Jens Daniel Müller
23 April, 2024
Last updated: 2024-04-23
Checks: 7 0
Knit directory:
bgc_argo_r_argodata/analysis/
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| File | Version | Author | Date | Message |
|---|---|---|---|---|
| Rmd | ae8003f | mlarriere | 2024-04-23 | Building test |
| html | 9938047 | mlarriere | 2024-04-22 | Build site. |
| Rmd | 2fc79bb | mlarriere | 2024-04-22 | Adding SST anomaly subsection |
| html | 9cac35e | mlarriere | 2024-04-22 | Build site. |
| Rmd | 86f2f02 | mlarriere | 2024-04-22 | Adding SST anomaly subsection |
Task
Dependencies
Outputs
path_emlr_utilities <- "/nfs/kryo/work/jenmueller/emlr_cant/utilities/files/"
path_basin_mask <- "/nfs/kryo/work/datasets/gridded/ocean/interior/reccap2/supplementary/"
path_argo <- '/nfs/kryo/work/datasets/ungridded/3d/ocean/floats/bgc_argo'
path_argo_core <- '/nfs/kryo/work/datasets/ungridded/3d/ocean/floats/core_argo_r_argodata_2024-03-13'
path_argo_core_preprocessed <- paste0(path_argo_core, "/preprocessed_core_data")
path_argo_preprocessed <- paste0(path_argo, "/preprocessed_bgc_data")
# path_mhw<- '/net/kryo/work/datasets/gridded/ocean/2d/obs/mhw'
path_basin_mask <- "/nfs/kryo/work/datasets/gridded/ocean/interior/reccap2/supplementary/"
path_pCO2_products <- "/nfs/kryo/work/datasets/gridded/ocean/2d/observation/pco2/"SST
Load data and create climatology 2004-2019 (mean value)
pco2_product <- read_ncdf(paste0(path_pCO2_products, "VLIZ-SOM_FFN/VLIZ-SOM_FFN_inputs.nc"),
var = "sst",
ignore_bounds = TRUE,
make_units = FALSE)
pco2_product <- pco2_product %>%
as_tibble()
pco2_product <- pco2_product %>%
mutate(across(-c(lon, lat, time), ~ replace(., . >= 1e+19, NA)))
# data each 15th of the month
pco2_product <- pco2_product %>%
mutate(year = year(time),
month = factor(format(time, "%m")),
date = time)
sst_2004_2019_natlantic<- pco2_product %>%
filter(year>2004, year<2019, !is.na(sst), lat > 0, lon <30, lon >-100)
climato_2004_2019<-sst_2004_2019_natlantic %>%
group_by(month, lat, lon) %>%
summarize(mean_temp=mean(sst, na.rm=TRUE))SST map
#Base map
world_coordinates <- map_data("world")
base_map <-ggplot() +
geom_map(data = world_coordinates, map = world_coordinates,
aes(long, lat, map_id = region))
#Restrict base map to North Atlantic Ocean
base_map <- base_map + lims(x= c(-100, 50), y = c(0, 80))
mean_temperature_map<- base_map +
geom_tile(data=climato_2004_2019, aes(x = lon, y = lat, fill = mean_temp)) +
scale_fill_viridis_c() +
labs(title= "Mean temperature in North atlantic",
subtitle= "Period: 2004 - 2019",
x = "Longitude", y = "Latitude", fill = "Mean SST (°C)") +
theme(legend.position = 'right')
print(mean_temperature_map)
| Version | Author | Date |
|---|---|---|
| 9cac35e | mlarriere | 2024-04-22 |
SST anomaly map
sst_2023_natlantic<- pco2_product %>%
filter(year==2023, !is.na(sst), lat > 0, lon <30, lon >-100)
merged_data <- merge(sst_2023_natlantic, climato_2004_2019, by = c("month", "lat", "lon")) %>%
as.tibble()
merged_data$SST_anomaly<- merged_data$sst - merged_data$mean_temp
sst_anomaly_2023_natlantic<-merged_data %>%
select(lat,lon, month, SST_anomaly)
# Define colors palette to match ~ color of ClimateReanalyser (for comparison)
colors <- c("lavender", "#9867C5", "darkblue", "lightblue", "white", "orange", "darkred", "red", "#FFCBCB")
palette <- colorRampPalette(colors)
n <- 20 #number of colors
continuous_palette <- palette(n) #continuous color palette
scale_limits <- c(-10, 10)
scale_breaks <- seq(scale_limits[1], scale_limits[2], length.out = n + 1)
anomaly_sst_2023_map <-
base_map +
geom_tile(data=sst_anomaly_2023_natlantic, aes(x = lon, y = lat, fill = SST_anomaly)) +
scale_fill_gradientn(colors = continuous_palette, limits = scale_limits, breaks = scale_breaks) +
labs(title = "Temperature Anomaly per month in North Atlantic (2023)",
subtitle = "climatology 2004-2019",
x = "Longitude", y = "Latitude") +
theme(legend.position = 'right', legend.key.height = unit(2, "cm")) +
facet_wrap(~ month, ncol=2)
print(anomaly_sst_2023_map)
Write file
write_rds(sst_anomaly_2023_natlantic,
file = paste0(path_argo_core_preprocessed,"/", "SST_anomaly2023_NorthAtlantic_clim2004-2019.rds"))
sessionInfo()R version 4.2.2 (2022-10-31)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: openSUSE Leap 15.5
Matrix products: default
BLAS: /usr/local/R-4.2.2/lib64/R/lib/libRblas.so
LAPACK: /usr/local/R-4.2.2/lib64/R/lib/libRlapack.so
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=en_US.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] RColorBrewer_1.1-3 stars_0.6-0 sf_1.0-9
[4] abind_1.4-5 broom_1.0.5 paletteer_1.6.0
[7] cluster_2.1.6 gridExtra_2.3 scatterplot3d_0.3-44
[10] viridis_0.6.2 viridisLite_0.4.1 ggOceanMaps_1.3.4
[13] ggspatial_1.1.7 oce_1.7-10 gsw_1.1-1
[16] lubridate_1.9.0 timechange_0.1.1 forcats_0.5.2
[19] stringr_1.5.0 dplyr_1.1.3 purrr_1.0.2
[22] readr_2.1.3 tidyr_1.3.0 tibble_3.2.1
[25] ggplot2_3.4.4 tidyverse_1.3.2 workflowr_1.7.0
loaded via a namespace (and not attached):
[1] googledrive_2.0.0 colorspace_2.0-3 ellipsis_0.3.2
[4] class_7.3-20 rprojroot_2.0.3 fs_1.5.2
[7] rstudioapi_0.15.0 proxy_0.4-27 farver_2.1.1
[10] fansi_1.0.3 xml2_1.3.3 codetools_0.2-18
[13] cachem_1.0.6 knitr_1.41 jsonlite_1.8.3
[16] dbplyr_2.2.1 rgeos_0.5-9 compiler_4.2.2
[19] httr_1.4.4 backports_1.4.1 assertthat_0.2.1
[22] fastmap_1.1.0 gargle_1.2.1 cli_3.6.1
[25] later_1.3.0 htmltools_0.5.8.1 tools_4.2.2
[28] gtable_0.3.1 glue_1.6.2 maps_3.4.1
[31] Rcpp_1.0.10 cellranger_1.1.0 jquerylib_0.1.4
[34] RNetCDF_2.6-1 raster_3.6-11 vctrs_0.6.4
[37] lwgeom_0.2-10 xfun_0.35 ps_1.7.2
[40] rvest_1.0.3 lifecycle_1.0.3 ncmeta_0.3.5
[43] googlesheets4_1.0.1 terra_1.7-65 getPass_0.2-2
[46] scales_1.2.1 hms_1.1.2 promises_1.2.0.1
[49] parallel_4.2.2 rematch2_2.1.2 yaml_2.3.6
[52] sass_0.4.4 stringi_1.7.8 highr_0.9
[55] e1071_1.7-12 rlang_1.1.1 pkgconfig_2.0.3
[58] evaluate_0.18 lattice_0.20-45 labeling_0.4.2
[61] processx_3.8.0 tidyselect_1.2.0 magrittr_2.0.3
[64] R6_2.5.1 generics_0.1.3 DBI_1.2.2
[67] pillar_1.9.0 haven_2.5.1 whisker_0.4
[70] withr_2.5.0 units_0.8-0 sp_1.5-1
[73] modelr_0.1.10 crayon_1.5.2 KernSmooth_2.23-20
[76] utf8_1.2.2 tzdb_0.3.0 rmarkdown_2.18
[79] grid_4.2.2 readxl_1.4.1 callr_3.7.3
[82] git2r_0.30.1 reprex_2.0.2 digest_0.6.30
[85] classInt_0.4-8 httpuv_1.6.6 munsell_0.5.0
[88] bslib_0.4.1