staged-recipes
staged-recipes copied to clipboard
pangeo-forge
Proposed Recipes for NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration
Source Dataset
This data set provides a Climate Data Record (CDR) of sea ice concentration from passive microwave data. The CDR algorithm output is a rule-based combination of ice concentration estimates from two well-established algorithms: the NASA Team (NT) algorithm (Cavalieri et al. 1984) and NASA Bootstrap (BT) algorithm (Comiso 1986). The CDR is a consistent, daily and monthly time series of sea ice concentrations from 25 October 1978 through the most recent processing for both the north and south polar regions. All data are on a 25 km x 25 km grid.
- Link to the website / online documentation for the data: https://nsidc.org/data/G02202/versions/4
- The file format (e.g. netCDF, csv): netCDF
- How are the source files organized? (e.g. one file per day): not sure
- How are the source files accessed (e.g. FTP): FTP - ftp://sidads.colorado.edu/DATASETS/NOAA/G02202_V4/
- Any special steps required to access the data (e.g. password required): Registration required
Transformation / Alignment / Merging
None
Output Dataset
One Zarr each for northern and southern hemisphere
cc @stb2145 - This would be useful for your project
FYI NOAA has made this data available via the BDP. AWS link: https://registry.opendata.aws/noaa-cdr-oceanic/
Amazing! Then we could do a Reference recipe and not even copy any data!
URLs look like this: s3://noaa-cdr-sea-ice-concentration-pds/data/1980/seaice_conc_daily_nh_n07_19800101_v02r00.nc
import xarray as xr
impor s3fs
fs = s3fs.S3FileSystem(token='anom')
file_url = 's3://noaa-cdr-sea-ice-concentration-pds/data/1980/seaice_conc_daily_nh_n07_19800101_v02r00.nc'
ds = xr.open_dataset(fs.open(file_url), engine='h5netcdf')
print(ds)
<xarray.Dataset>
Dimensions: (time: 1, ygrid: 448, xgrid: 304)
Coordinates:
* time (time) datetime64[ns] 1980-01-01
* ygrid (ygrid) float32 5.838e+06 ... -5.338e+06
* xgrid (xgrid) float32 -3.838e+06 ... 3.738e+06
latitude (ygrid, xgrid) float64 ...
longitude (ygrid, xgrid) float64 ...
Data variables:
projection |S1 ...
seaice_conc_cdr (time, ygrid, xgrid) float32 ...
stdev_of_seaice_conc_cdr (time, ygrid, xgrid) float32 ...
melt_onset_day_seaice_conc_cdr (time, ygrid, xgrid) float32 ...
qa_of_seaice_conc_cdr (time, ygrid, xgrid) float32 ...
goddard_merged_seaice_conc (time, ygrid, xgrid) float32 ...
goddard_nt_seaice_conc (time, ygrid, xgrid) float32 ...
goddard_bt_seaice_conc (time, ygrid, xgrid) float32 ...
Attributes: (12/42)
Conventions: CF-1.6
title: NOAA/NSIDC Climate Data Record of Passive Micr...
references: Comiso, J. C., and F. Nishio. 2008. Trends in ...
cdr_program: NOAA Climate Data Record Program
cdr_variable: seaice_conc_cdr
software_version_id: svn+ssh://newice.colorado.edu/SubversionReposi...
... ...
platform: NIMBUS-7
sensor: SMMR > Scanning Multichannel Microwave Radiometer
date_created: 2013-05-22T19:14:28Z
time_coverage_start: 1980-01-01T00:00:00Z
time_coverage_end: 1980-01-01T23:59:59Z
comment: The variables seaice_conc_cdr, stdev_of_seaice...
Looking at the bucket s3://noaa-cdr-sea-ice-concentration-pds for Passive Microwave Sea Ice Concentration, data only appears to available through 2015. My understanding from the CDR docs is that this dataset has been produced through present? @Patrick-Keown is there a good point of contract for this CDR distribution that we can ask about the distribution date range in the S3 bucket?
Hi Sean,
Let me get the right POC for this specific dataset and get back to you.
Thanks,
Patrick Keown
Program Manager, NOAA Open Data Dissemination (NODD)
Office of the Chief Information Officer (OCIO)
National Oceanic & Atmospheric Administration
(615) 319-5906 | @.***
"Be sure when you step, step with care and great tact" - Dr. Seuss
On Thu, Oct 20, 2022 at 2:16 PM Sean Harkins @.***> wrote:
Looking at the bucket s3://noaa-cdr-sea-ice-concentration-pds for Passive Microwave Sea Ice Concentration, data only appears to available through 2015. My understanding from the CDR docs is that this dataset has been produced through present? @Patrick-Keown https://github.com/Patrick-Keown is there a good point of contract for this CDR distribution that we can ask about the distribution date range in the S3 bucket?
— Reply to this email directly, view it on GitHub https://github.com/pangeo-forge/staged-recipes/issues/73#issuecomment-1285958135, or unsubscribe https://github.com/notifications/unsubscribe-auth/AOISIED6A3HSOYM2W64GWPDWEGD6PANCNFSM5C6AEFWA . You are receiving this because you were mentioned.Message ID: @.***>
Hi Sean,
For Passive Microwave Sea Ice Concentration CDR questions, please contact the team at @.***
Thanks,
Patrick Keown
Program Manager, NOAA Open Data Dissemination (NODD)
Office of the Chief Information Officer (OCIO)
National Oceanic & Atmospheric Administration
(615) 319-5906 | @.***
"Be sure when you step, step with care and great tact" - Dr. Seuss
On Fri, Oct 21, 2022 at 9:15 AM Patrick Keown - NOAA Federal < @.***> wrote:
Hi Sean,
Let me get the right POC for this specific dataset and get back to you.
Thanks,
Patrick Keown
Program Manager, NOAA Open Data Dissemination (NODD)
Office of the Chief Information Officer (OCIO)
National Oceanic & Atmospheric Administration
(615) 319-5906 | @.***
"Be sure when you step, step with care and great tact" - Dr. Seuss
On Thu, Oct 20, 2022 at 2:16 PM Sean Harkins @.***> wrote:
Looking at the bucket s3://noaa-cdr-sea-ice-concentration-pds for Passive Microwave Sea Ice Concentration, data only appears to available through 2015. My understanding from the CDR docs is that this dataset has been produced through present? @Patrick-Keown https://github.com/Patrick-Keown is there a good point of contract for this CDR distribution that we can ask about the distribution date range in the S3 bucket?
— Reply to this email directly, view it on GitHub https://github.com/pangeo-forge/staged-recipes/issues/73#issuecomment-1285958135, or unsubscribe https://github.com/notifications/unsubscribe-auth/AOISIED6A3HSOYM2W64GWPDWEGD6PANCNFSM5C6AEFWA . You are receiving this because you were mentioned.Message ID: @.***>
@Patrick-Keown On Github issues, all email address are obfuscated so I'm not actually able to see the contact you included. Do any of these contact points have a Github handle you can use as a point of contact?
Sean,
Unfortunately not. Can you contact me via our team email. That can be found on the CDR Roda Page. It is the NODD contact email.
Patrick Keown
Program Manager, NOAA Open Data Dissemination (NODD)
Office of the Chief Information Officer (OCIO)
National Oceanic & Atmospheric Administration
(615) 319-5906 | @.***
"Be sure when you step, step with care and great tact" - Dr. Seuss
On Fri, Oct 21, 2022 at 3:32 PM Sean Harkins @.***> wrote:
@Patrick-Keown https://github.com/Patrick-Keown On Github issues, all email address are obfuscated so I'm not actually able to see the contact you included. Do any of these contact points have a Github handle you can use as a point of contact?
— Reply to this email directly, view it on GitHub https://github.com/pangeo-forge/staged-recipes/issues/73#issuecomment-1287359685, or unsubscribe https://github.com/notifications/unsubscribe-auth/AOISIEFG66GTSNUNDUZPSIDWELVULANCNFSM5C6AEFWA . You are receiving this because you were mentioned.Message ID: @.***>