diff --git a/DESCRIPTION b/DESCRIPTION
index f23ef9d..af0c338 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: raadfiles
 Title: File Database Management for 'raadtools'
-Version: 0.1.4.9008
+Version: 0.1.4.9009
 Authors@R: c(person("Michael D.","Sumner", role = c("aut", "cre"), email = "michael.sumner@aad.gov.au"),
              person("Ben", "Raymond", role = "ctb"),
              person("Kimberlee", "Baldry", role = c("ctb"), comment = c(ORCID = "0000-0003-3286-8624")))
diff --git a/NAMESPACE b/NAMESPACE
index 5a6fea8..e58374d 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -25,6 +25,7 @@ export(gebco08_files)
 export(gebco14_files)
 export(gebco19_files)
 export(gebco21_files)
+export(gebco23_files)
 export(geoid_files)
 export(george_v_terre_adelie_1000m_files)
 export(george_v_terre_adelie_100m_files)
@@ -33,6 +34,7 @@ export(george_v_terre_adelie_500m_files)
 export(get_raad_data_roots)
 export(get_raad_filenames)
 export(ghrsst_daily_files)
+export(ghrsst_daily_files_netcdf)
 export(ibcso_background_files)
 export(ibcso_bed_files)
 export(ibcso_digital_chart_files)
diff --git a/NEWS.md b/NEWS.md
index a72c3bc..961b224 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,5 +1,7 @@
 # raadfiles dev
 
+* New function `gebco23_files()` for our local copy. 
+
 * `srtm_files()` now defunct, use opentopography or similar (one example is in gh:hypertidy/sds::cop30()). 
 
 * Bumped required version of fs to dev, see https://github.com/r-lib/fs/issues/447. 
diff --git a/R/topography-files.R b/R/topography-files.R
index 8e12ec9..34c4dd6 100644
--- a/R/topography-files.R
+++ b/R/topography-files.R
@@ -14,9 +14,9 @@ topo_files_generic <- function(pattern, ...) {
 #'
 #' There's no single format, there are GeoTIFFs, ArcInfo binary, ERStorage, NetCDF, NetCDF GMT, (Geo) PDF, and some VRT
 #' wrappers for handling raw binary files.
-#'
+
 #' @section GEBCO General Bathymetric Chart of the Oceans:
-#' Versions 2008, 2014, 2019, 2021.
+#' Versions 2008, 2014, 2019, 2021, 2023.
 #' @section IBCSO International Bathymetric Chart of the Southern Ocean:
 #' 'is' ('is_PS71' tif, or grd), 'background_hq', 'bed' ('bed_PS71'), 'digital_chart', 'sid' ('sid_PS71')
 #' @section ETOPO:
@@ -36,9 +36,19 @@ topo_files_generic <- function(pattern, ...) {
 #'
 #' @examples
 #' \dontrun{
-#'   gebco21_files()
+#'   gebco23_files()
 #' }
 #'
+gebco23_files <- function(all = FALSE, ...) {
+  ## there's no "all"
+  out <- topo_files_generic(c("gebco", "idea.public/gebco/gebco_2023_land_cog\\.tif"))
+
+  out
+}
+
+#' @name topography
+#' @rdname topography-files
+#' @export
 gebco21_files <- function(all = FALSE, ...) {
  if (all) {
     out <- topo_files_generic("www.bodc.ac.uk/.*gebco/gebco_2021.*")
diff --git a/man/amsr_daily_files.Rd b/man/amsr_daily_files.Rd
index e97e222..1e53018 100644
--- a/man/amsr_daily_files.Rd
+++ b/man/amsr_daily_files.Rd
@@ -7,7 +7,7 @@
 \alias{amsr2_daily_files}
 \title{AMSR daily  sea-ice concentration}
 \usage{
-amsr2_3k_daily_files()
+amsr2_3k_daily_files(type = c("tif", "hdf"))
 
 amsre_daily_files()
 
@@ -15,6 +15,9 @@ amsr2_daily_files()
 
 amsr_daily_files()
 }
+\arguments{
+\item{type}{tif or hdf}
+}
 \value{
 tibble data frame of file names
 }
diff --git a/man/topography-files.Rd b/man/topography-files.Rd
index 08b9ac7..c9ede11 100644
--- a/man/topography-files.Rd
+++ b/man/topography-files.Rd
@@ -2,6 +2,7 @@
 % Please edit documentation in R/topography-files.R
 \name{topography}
 \alias{topography}
+\alias{gebco23_files}
 \alias{gebco21_files}
 \alias{gebco19_files}
 \alias{gebco14_files}
@@ -31,6 +32,8 @@
 \alias{macquarie100m_58S_files}
 \title{Topographic data files}
 \usage{
+gebco23_files(all = FALSE, ...)
+
 gebco21_files(all = FALSE, ...)
 
 gebco19_files(all = FALSE, ...)
@@ -106,7 +109,7 @@ wrappers for handling raw binary files.
 }
 \section{GEBCO General Bathymetric Chart of the Oceans}{
 
-Versions 2008, 2014, 2019, 2021.
+Versions 2008, 2014, 2019, 2021, 2023.
 }
 
 \section{IBCSO International Bathymetric Chart of the Southern Ocean}{
@@ -136,7 +139,7 @@ George V Terre Adelie, Kerguelen, Macquarie 100m
 
 \examples{
 \dontrun{
-  gebco21_files()
+  gebco23_files()
 }
 
 }