# Status code: 404 on NOAA OISST data on Pangeo-Forge
**URL:** https://discourse.pangeo.io/t/status-code-404-on-noaa-oisst-data-on-pangeo-forge/3069
**Category:** Pangeo Cloud Support
**Created:** [January 11, 2023, 8:07pm UTC](https://discourse.pangeo.io/t/status-code-404-on-noaa-oisst-data-on-pangeo-forge/3069 "2023-01-11T20:07:29Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@stb2145](https://discourse.pangeo.io/u/stb2145)
#### Post date: [January 11, 2023, 8:07pm UTC](https://discourse.pangeo.io/t/status-code-404-on-noaa-oisst-data-on-pangeo-forge/3069/1 "2023-01-11T20:07:29Z")
Hi,
I am trying to access NOAA’s OISST AVHHR data stored on the cloud; however, instead of seeing the usual block of code where I can copy and paste to simply run and load in the dataset in my notebook, I am seeing this error message:
```auto
An error occurred while fetching data from URL: https://api.pangeo-forge.org/repr/xarray/?url=https://ncsa.osn.xsede.org/Pangeo/pangeo-forge/pangeo-forge/aws-noaa-oisst-feedstock/aws-noaa-oisst-avhrr-only.zarr
{"detail":"An error occurred while fetching the data from URL: https://ncsa.osn.xsede.org/Pangeo/pangeo-forge/pangeo-forge/aws-noaa-oisst-feedstock/aws-noaa-oisst-avhrr-only.zarr. Dataset not found."}
```
The dataset seems to not live where it’s supposed to and here is the [link to the dataset](https://pangeo-forge.org/dashboard/feedstock/93) on pangeo-forge’s catalog. I am having trouble tracking down the maintainer for this dataset so I would appreciate anyone’s help on resolving this matter. Thanks!
---
### Author:  [@andersy005](https://discourse.pangeo.io/u/andersy005)
#### Post date: [January 11, 2023, 11:12pm UTC](https://discourse.pangeo.io/t/status-code-404-on-noaa-oisst-data-on-pangeo-forge/3069/2 "2023-01-11T23:12:32Z")
👋🏾 @stb2145, the dataset itself is fine ( this is a kerchunk-ed dataset `"https://ncsa.osn.xsede.org/Pangeo/pangeo-forge/pangeo-forge/aws-noaa-oisst-feedstock/aws-noaa-oisst-avhrr-only.zarr/reference.json"`), and can be accessed via xarray using the following code snippet.
```python
In [1]: import xarray as xr
In [2]: url = "https://ncsa.osn.xsede.org/Pangeo/pangeo-forge/pangeo-forge/aws-noaa-oisst-feedstock/aws-noaa-oisst-avhrr-only.zarr/reference.json"
In [3]: ds = xr.open_dataset("reference://", engine='zarr',
...: backend_kwargs={'consolidated': False,
...: 'storage_options': {'fo': url, 'remote_options': {'anon': True}, 'remote_protocol': 's3'}},
...: chunks={})
In [4]:
In [4]: ds
Out[4]:
Dimensions: (time: 15044, zlev: 1, lat: 720, lon: 1440)
Coordinates:
* lat (lat) float32 -89.88 -89.62 -89.38 -89.12 ... 89.38 89.62 89.88
* lon (lon) float32 0.125 0.375 0.625 0.875 ... 359.1 359.4 359.6 359.9
* time (time) datetime64[ns] 1981-09-01T12:00:00 ... 2022-11-08T12:00:00
* zlev (zlev) float32 0.0
Data variables:
anom (time, zlev, lat, lon) float32 dask.array
err (time, zlev, lat, lon) float32 dask.array
ice (time, zlev, lat, lon) float32 dask.array
sst (time, zlev, lat, lon) float32 dask.array
Attributes: (12/37)
Conventions: CF-1.6, ACDD-1.3
cdm_data_type: Grid
comment: Data was converted from NetCDF-3 to NetCDF-4 ...
creator_email: oisst-help@noaa.gov
creator_url: https://www.ncei.noaa.gov/
date_created: 2020-05-08T19:05:13Z
... ...
source: ICOADS, NCEP_GTS, GSFC_ICE, NCEP_ICE, Pathfin...
standard_name_vocabulary: CF Standard Name Table (v40, 25 January 2017)
summary: NOAAs 1/4-degree Daily Optimum Interpolation ...
time_coverage_end: 1981-09-01T23:59:59Z
time_coverage_start: 1981-09-01T00:00:00Z
title: NOAA/NCEI 1/4 Degree Daily Optimum Interpolat...
```
the issue on [pangeo-forge.org](http://pangeo-forge.org) has to do with some hardcoded assumptions in the codebase used to preview the dataset, and is being tracked in this issue [Add kerchunk opener to `repr` route · Issue #200 · pangeo-forge/pangeo-forge-orchestrator · GitHub](https://github.com/pangeo-forge/pangeo-forge-orchestrator/issues/200)
---
### Author:  [@stb2145](https://discourse.pangeo.io/u/stb2145)
#### Post date: [January 12, 2023, 12:36am UTC](https://discourse.pangeo.io/t/status-code-404-on-noaa-oisst-data-on-pangeo-forge/3069/3 "2023-01-12T00:36:45Z")
Great, thank you so much for the quick help, Anderson! I guess I was just missing the `/reference.json` part…