Anthropogenic CO2 from 1994 to 2007
Jens Daniel Müller
26 April, 2022
Last updated: 2022-04-26
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Knit directory: emlr_obs_preprocessing/
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| Rmd | d145737 | jens-daniel-mueller | 2022-04-26 | write published, unmasked column inventories of G19 to files |
| html | e949567 | jens-daniel-mueller | 2022-04-13 | Build site. |
| html | aea9afe | jens-daniel-mueller | 2022-04-07 | Build site. |
| Rmd | af08e38 | jens-daniel-mueller | 2022-04-07 | rerun all with lat max 65N and without arcic |
| html | f088f55 | jens-daniel-mueller | 2022-04-01 | Build site. |
| html | dde77eb | jens-daniel-mueller | 2022-04-01 | Build site. |
| Rmd | a1ea47d | jens-daniel-mueller | 2022-04-01 | rerun all including arctic and North Atlantic biome |
| html | 6e65117 | jens-daniel-mueller | 2022-02-16 | Build site. |
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| html | 61af6e7 | jens-daniel-mueller | 2021-10-12 | Build site. |
| Rmd | 730f19a | jens-daniel-mueller | 2021-10-12 | prepare G19 data for RECCAP2 |
| html | 2dad8c7 | jens-daniel-mueller | 2021-10-12 | Build site. |
| Rmd | 1268707 | jens-daniel-mueller | 2021-10-12 | prepare G19 data for RECCAP2 |
| html | 6cef0b0 | jens-daniel-mueller | 2021-09-26 | Build site. |
| Rmd | 984ccac | jens-daniel-mueller | 2021-09-26 | read all Gruber 2019 cases |
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| html | 6312bd4 | jens-daniel-mueller | 2021-07-07 | Build site. |
| Rmd | 4905409 | jens-daniel-mueller | 2021-07-07 | rerun with new setup_obs.Rmd file |
| html | 58bc706 | jens-daniel-mueller | 2021-07-06 | Build site. |
| Rmd | 0db89e1 | jens-daniel-mueller | 2021-07-06 | rerun with revised variable names |
1 Data source
- Anthropogenic CO2 estimates (1994-2007) by Gruber et al. (2019) downloaded in August 2020 from NOAA/NCEI Ocean Carbon Data System (OCADS)
2 Read nc files
Here, we use the standard case V101 for public and raw data sets.
2.1 Public data sets
The publicly available data sets contain only positive Cant estimates.
2.1.1 3d fields
# open file
dcant <- tidync(paste(
path_gruber_2019,
"dcant_emlr_cstar_gruber_94-07_vs1.nc",
sep = ""
))
# read gamma field as tibble
dcant <- dcant %>% activate(GAMMA_DENS)
dcant_gamma <- dcant %>% hyper_tibble()
# read delta cant field
dcant <- dcant %>% activate(DCANT_01)
dcant <- dcant %>% hyper_tibble()
# join cant and gamma fields
dcant <- left_join(dcant, dcant_gamma)
# harmonize column names and coordinates
dcant <- dcant %>%
rename(lon = LONGITUDE,
lat = LATITUDE,
depth = DEPTH,
gamma = GAMMA_DENS,
dcant_pos = DCANT_01) %>%
mutate(lon = if_else(lon < 20, lon + 360, lon))
rm(dcant_gamma)2.1.2 Column inventories
dcant_inv_publ <- tidync(paste(
path_gruber_2019,
"inv_dcant_emlr_cstar_gruber_94-07_vs1.nc",
sep = ""
))
dcant_inv_publ <- dcant_inv_publ %>% activate(DCANT_INV01)
dcant_inv_publ <- dcant_inv_publ %>% hyper_tibble()
# harmonize column names and coordinates
dcant_inv_publ <- dcant_inv_publ %>%
rename(lon = LONGITUDE,
lat = LATITUDE,
dcant_pos = DCANT_INV01) %>%
mutate(lon = if_else(lon < 20, lon + 360, lon))dcant_inv_publ_all <- read_ncdf(
paste(
path_gruber_2019,
"inv_dcant_emlr_cstar_gruber_94-07_vs1.nc",
sep = ""
),
var = sprintf("DCANT_INV%02d", seq(1, 14, 1)),
make_units = FALSE
)
dcant_inv_publ_all <- dcant_inv_publ_all %>% as_tibble()
dcant_inv_publ_all <- dcant_inv_publ_all %>%
pivot_longer(DCANT_INV01:DCANT_INV14,
names_to = "Version_ID",
values_to = "dcant_pos",
names_prefix = "DCANT_INV")
# harmonize column names and coordinates
dcant_inv_publ_all <- dcant_inv_publ_all %>%
rename(lon = LONGITUDE,
lat = LATITUDE) %>%
mutate(lon = if_else(lon < 20, lon + 360, lon))2.2 Raw data
Internally available data sets also contain negative Cant estimates, as they are generated in the “raw” output of the eMLR mapping step.
# open v 101 file
V101 <- tidync(paste(path_gruber_2019,
"Cant_V101new.nc",
sep = ""))
# create tibble
V101 <- V101 %>% activate(Cant)
V101 <- V101 %>% hyper_tibble()
# harmonize column names and coordinates
V101 <- V101 %>%
rename(lon = longitude,
lat = latitude,
dcant = Cant) %>%
filter(dcant != -999) %>%
mutate(lon = if_else(lon < 20, lon + 360, lon))3 Apply basin mask
# use only three basin to assign general basin mask
# ie this is not specific to the MLR fitting
basinmask <- basinmask %>%
filter(MLR_basins == "2") %>%
select(lat, lon, basin_AIP)
dcant <- inner_join(dcant, basinmask)
dcant_inv_publ_masked <- inner_join(dcant_inv_publ, basinmask)
dcant_inv_publ_all <- inner_join(dcant_inv_publ_all, basinmask)
V101 <- inner_join(V101, basinmask)
ggplot() +
geom_tile(data = dcant_inv_publ,
aes(lon, lat, fill = "basin mask not applied")) +
geom_tile(data = dcant_inv_publ_masked,
aes(lon, lat, fill = "basin mask applied")) +
coord_quickmap()
4 Join pos and all delta Cant
# join files
dcant_3d <- inner_join(dcant, V101)
rm(dcant, V101)5 Zonal mean section
dcant_zonal <- m_zonal_mean_sd(dcant_3d)6 Column inventory
6.1 Calculation
dcant_inv_layers <- m_dcant_inv(dcant_3d)
dcant_inv <- dcant_inv_layers %>%
filter(inv_depth == params_global$inventory_depth_standard)6.2 Plots
6.2.1 All Cant
p_map_cant_inv(
df = dcant_inv,
var = "dcant",
col = "divergent")
6.2.2 Pos Cant
p_map_cant_inv(
df = dcant_inv,
var = "dcant_pos")
p_map_cant_inv(
df = dcant_inv_publ_all %>% mutate(dcant_pos = dcant_pos*(10/13)),
var = "dcant_pos") +
facet_wrap(~ Version_ID, ncol = 2)
6.2.3 Published inventories
p_map_cant_inv(
df = dcant_inv_publ,
var = "dcant_pos",
title_text = "Published column inventories - unmasked")
p_map_cant_inv(
df = dcant_inv_publ_masked,
var = "dcant_pos",
title_text = "Published column inventories - masked")
6.2.4 Published vs calculated
# join published and calculated data sets
dcant_inv_offset <- inner_join(
dcant_inv %>% rename(dcant_re = dcant_pos),
dcant_inv_publ_masked %>% rename(dcant_pub = dcant_pos)
)
# calculate offset
dcant_inv_offset <- dcant_inv_offset %>%
mutate(dcant_offset = dcant_re - dcant_pub)
# plot map
p_map_cant_inv(
df = dcant_inv_offset,
var = "dcant_offset",
col = "bias",
breaks = seq(-3, 3, 0.25)
)
rm(dcant_inv_offset)7 Horizontal plane maps
7.1 All Cant
p_map_climatology(
df = dcant_3d,
var = "dcant",
col = "divergent")
7.2 Positive Cant
p_map_climatology(
df = dcant_3d,
var = "dcant_pos")
8 Zonal mean section plot
8.1 Positive Cant
dcant_zonal %>%
group_split(basin_AIP) %>%
# head(1) %>%
map(
~ p_section_zonal(
df = .x,
var = "dcant_pos_mean",
plot_slabs = "n",
subtitle_text = paste("Basin:", unique(.x$basin_AIP))
)
)[[1]]
[[2]]
[[3]]
9 Global sections plot
9.1 All Cant
p_section_global(
df = dcant_3d,
var = "dcant",
col = "divergent")
10 Sections at regular longitudes
10.1 All Cant
p_section_climatology_regular(
df = dcant_3d,
var = "dcant",
col = "divergent")
10.2 Positive Cant
p_section_climatology_regular(
df = dcant_3d,
var = "dcant_pos")
11 Write files
dcant_3d %>%
write_csv(paste(path_preprocessing,
"G19_dcant_3d.csv",
sep = ""))
dcant_inv %>%
write_csv(paste(path_preprocessing,
"G19_dcant_inv.csv",
sep = ""))
dcant_inv_publ %>%
write_csv(paste(path_preprocessing,
"G19_dcant_inv_publ.csv",
sep = ""))
dcant_inv_publ_all %>%
write_csv(paste(path_preprocessing,
"G19_dcant_inv_all.csv",
sep = ""))
dcant_zonal %>%
write_csv(paste(path_preprocessing,
"G19_dcant_zonal.csv",
sep = ""))12 RECCAP2-ocean
# extract coordinate reference system
G19_raster <- raster::brick(paste0(
path_gruber_2019,
"dcant_emlr_cstar_gruber_94-07_vs1.nc"))
coord_ref <- raster::crs(G19_raster)
rm(G19_raster)
# open nc file for data extraction
dcant_nc <- tidync(paste(
path_gruber_2019,
"dcant_emlr_cstar_gruber_94-07_vs1.nc",
sep = ""
))
# read delta cant field
dcant <- dcant_nc %>%
activate(DCANT_01) %>%
hyper_tibble(na.rm = FALSE)
# read delta cant field
gamma <- dcant_nc %>%
activate(GAMMA_DENS) %>%
hyper_tibble(na.rm = FALSE)
# join gamma and dcant
dcant <- full_join(dcant, gamma)
rm(gamma)
# harmonize column names and coordinates
dcant <- dcant %>%
rename(lon = LONGITUDE,
lat = LATITUDE,
depth = DEPTH,
dcant = DCANT_01,
gamma = GAMMA_DENS) %>%
mutate(gamma = if_else(is.na(dcant), NaN, gamma))
# convert dcant unit from "µmol kg-1" to "mol m-3"
dcant <- dcant %>%
mutate(dens = (1000 + gamma) / 1000,
dcant = dcant * dens * 1e-3)
# create volume grid
dcant <- dcant %>%
m_layer_thickness() %>%
mutate(surface_area = marelac::earth_surf(lat, lon),
volume = layer_thickness * surface_area,
volume = if_else(is.na(dcant), NaN, volume))
# check total volume
dcant %>%
summarise(total_ocean_volume = sum(volume, na.rm = TRUE))
# check total dcant
dcant %>%
filter(depth <= 3000) %>%
mutate(dcant_inv = dcant * volume) %>%
summarise(total_dcant = sum(dcant_inv, na.rm = TRUE)*12*1e-15)
# select relevant columns
dcant <- dcant %>%
select(lon, lat, depth, dcant, volume)
# create raster objects
volume_raster <- dcant %>%
select(lon, lat, volume) %>%
base::split(dcant$depth) %>%
lapply(raster::rasterFromXYZ) %>%
raster::brick() %>%
raster::setZ(z = unique(dcant$depth), name = "volume")
dcant_raster <- dcant %>%
select(lon, lat, dcant) %>%
base::split(dcant$depth) %>%
lapply(raster::rasterFromXYZ) %>%
raster::brick() %>%
raster::setZ(z = unique(dcant$depth), name = "dcant")
# assign coordinate reference system
raster::crs(dcant_raster) <- coord_ref
raster::crs(volume_raster) <- coord_ref
# assign NA values
raster::NAvalue(dcant_raster) <- -9999
raster::NAvalue(dcant_raster)
raster::NAvalue(volume_raster) <- -9999
raster::NAvalue(volume_raster)
# check object
dim(dcant_raster)
raster::nbands(dcant_raster)
raster::nlayers(dcant_raster)
names(dcant_raster) #get the names of layers
raster::getZ(dcant_raster)
# write netcdf file
raster::writeRaster(
dcant_raster,
filename = paste0(path_preprocessing,
"dcant_Gruber2019_1994-2007_v20211012.nc"),
overwrite = T
)
raster::writeRaster(
volume_raster,
filename = paste0(path_preprocessing,
"volume_Gruber2019_1994-2007_v20211012.nc"),
overwrite = T
)
# modify created netcdf files
library(ncdf4)
# dcant file
# open file in writing mode
dcant_reopen <- nc_open(
paste0(path_preprocessing,
"dcant_Gruber2019_1994-2007_v20211012.nc"),
write = TRUE)
dcant_reopen
print(dcant_reopen)
names(dcant_reopen$var)
# add units
ncatt_get(dcant_reopen, varid = "dcant")
ncatt_put(dcant_reopen, varid = "dcant",
attname = "units", attval = "mol m-3")
ncatt_get(dcant_reopen, varid = "z")
ncatt_put(dcant_reopen, varid = "z",
attname = "units", attval = "metres")
nc_close(dcant_reopen)
# volume file
# open file in writing mode
volume_reopen <- nc_open(
paste0(path_preprocessing,
"volume_Gruber2019_1994-2007_v20211012.nc"),
write = TRUE)
volume_reopen
print(volume_reopen)
names(volume_reopen$var)
# add units
ncatt_get(volume_reopen, varid = "volume")
ncatt_put(volume_reopen, varid = "volume",
attname = "units", attval = "m3")
ncatt_get(volume_reopen, varid = "z")
ncatt_put(volume_reopen, varid = "z",
attname = "units", attval = "metres")
nc_close(volume_reopen)
# final check dcant
dcant_reopen <- tidync(
paste0(path_preprocessing,
"dcant_Gruber2019_1994-2007_v20211012.nc")) %>%
hyper_tibble()
dcant_reopen %>%
filter(z == 0) %>%
ggplot(aes(longitude, latitude, fill=dcant)) +
geom_raster() +
scale_fill_viridis_c()
dcant_reopen %>%
filter(longitude == 200.5) %>%
ggplot(aes(latitude, z, z=dcant)) +
scale_y_reverse() +
geom_contour_filled() +
scale_fill_viridis_d()
dcant_reopen <- read_ncdf(
paste0(path_preprocessing,
"dcant_Gruber2019_1994-2007_v20211012.nc"))
plot(dcant_reopen,
axes = TRUE)
# final check volume
volume_reopen <- tidync(
paste0(path_preprocessing,
"volume_Gruber2019_1994-2007_v20211012.nc")) %>%
hyper_tibble()
volume_reopen %>%
filter(z == 0) %>%
ggplot(aes(longitude, latitude, fill=volume)) +
geom_raster() +
scale_fill_viridis_c()
volume_reopen %>%
filter(longitude == 200.5) %>%
ggplot(aes(latitude, z, z=volume)) +
scale_y_reverse() +
geom_contour_filled() +
scale_fill_viridis_d()
volume_reopen <- read_ncdf(
paste0(path_preprocessing,
"volume_Gruber2019_1994-2007_v20211012.nc"))
plot(volume_reopen,
axes = TRUE)
sessionInfo()R version 4.1.2 (2021-11-01)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: openSUSE Leap 15.3
Matrix products: default
BLAS: /usr/local/R-4.1.2/lib64/R/lib/libRblas.so
LAPACK: /usr/local/R-4.1.2/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] stars_0.5-5 sf_1.0-5 abind_1.4-5 tidync_0.2.4
[5] colorspace_2.0-2 marelac_2.1.10 shape_1.4.6 ggforce_0.3.3
[9] metR_0.11.0 scico_1.3.0 patchwork_1.1.1 collapse_1.7.0
[13] forcats_0.5.1 stringr_1.4.0 dplyr_1.0.7 purrr_0.3.4
[17] readr_2.1.1 tidyr_1.1.4 tibble_3.1.6 ggplot2_3.3.5
[21] tidyverse_1.3.1 workflowr_1.7.0
loaded via a namespace (and not attached):
[1] fs_1.5.2 bit64_4.0.5 lubridate_1.8.0 gsw_1.0-6
[5] httr_1.4.2 rprojroot_2.0.2 tools_4.1.2 backports_1.4.1
[9] bslib_0.3.1 utf8_1.2.2 R6_2.5.1 KernSmooth_2.23-20
[13] DBI_1.1.2 withr_2.4.3 tidyselect_1.1.1 processx_3.5.2
[17] bit_4.0.4 compiler_4.1.2 git2r_0.29.0 cli_3.1.1
[21] rvest_1.0.2 RNetCDF_2.5-2 xml2_1.3.3 isoband_0.2.5
[25] labeling_0.4.2 sass_0.4.0 scales_1.1.1 checkmate_2.0.0
[29] classInt_0.4-3 proxy_0.4-26 SolveSAPHE_2.1.0 callr_3.7.0
[33] digest_0.6.29 rmarkdown_2.11 oce_1.5-0 pkgconfig_2.0.3
[37] htmltools_0.5.2 highr_0.9 dbplyr_2.1.1 fastmap_1.1.0
[41] rlang_0.4.12 readxl_1.3.1 rstudioapi_0.13 jquerylib_0.1.4
[45] generics_0.1.1 farver_2.1.0 jsonlite_1.7.3 vroom_1.5.7
[49] magrittr_2.0.1 ncmeta_0.3.0 Rcpp_1.0.8 munsell_0.5.0
[53] fansi_1.0.2 lifecycle_1.0.1 stringi_1.7.6 whisker_0.4
[57] yaml_2.2.1 MASS_7.3-55 grid_4.1.2 parallel_4.1.2
[61] promises_1.2.0.1 crayon_1.4.2 haven_2.4.3 hms_1.1.1
[65] seacarb_3.3.0 knitr_1.37 ps_1.6.0 pillar_1.6.4
[69] reprex_2.0.1 glue_1.6.0 evaluate_0.14 getPass_0.2-2
[73] data.table_1.14.2 modelr_0.1.8 vctrs_0.3.8 tzdb_0.2.0
[77] tweenr_1.0.2 httpuv_1.6.5 cellranger_1.1.0 gtable_0.3.0
[81] polyclip_1.10-0 assertthat_0.2.1 xfun_0.29 lwgeom_0.2-8
[85] broom_0.7.11 e1071_1.7-9 later_1.3.0 viridisLite_0.4.0
[89] class_7.3-20 ncdf4_1.19 units_0.7-2 ellipsis_0.3.2