LP DAAC OpeNDAP サーバー上のデータのリモート アクセスに xarray/pydap を使用したいと考えています。
Earth Data アカウント (ユーザー名とパスワード -ログイン ページ) を持っており、承認済みアプリケーションのリストに LP DAAC OpeNDAP アプリケーションを追加しました。
以下は、データにアクセスするための私の努力です。LP DAAC から opendap 経由でデータにアクセスできた人はいますか? 私のURLは正しいですか?これはサーバー側 (opendap) の問題のように見えますか?
コード例:
from pydap.client import open_url
from pydap.cas.urs import setup_session
import xarray as xr
dataset_url = 'https://opendap.cr.usgs.gov/opendap/hyrax/MOD13Q1.006/h00v08.ncml.nc4'
### Replace with your username and password
session = setup_session('XXXX', 'XXXXXX', check_url=dataset_url)
store = xr.backends.PydapDataStore.open(dataset_url, session=session)
ds = xr.open_dataset(store)
---------------------------------------------------------------------------
HTTPError Traceback (most recent call last)
<ipython-input-5-0ddf552f3174> in <module>
----> 1 store = xr.backends.PydapDataStore.open(dataset_url, session=session)
2 ds = xr.open_dataset(store)
/opt/conda/lib/python3.7/site-packages/xarray/backends/pydap_.py in open(cls, url, session)
71 def open(cls, url, session=None):
72 import pydap.client
---> 73 ds = pydap.client.open_url(url, session=session)
74 return cls(ds)
75
/opt/conda/lib/python3.7/site-packages/pydap/client.py in open_url(url, application, session, output_grid, timeout)
65 """
66 dataset = DAPHandler(url, application, session, output_grid,
---> 67 timeout).dataset
68
69 # attach server-side functions
/opt/conda/lib/python3.7/site-packages/pydap/handlers/dap.py in __init__(self, url, application, session, output_grid, timeout)
52 ddsurl = urlunsplit((scheme, netloc, path + '.dds', query, fragment))
53 r = GET(ddsurl, application, session, timeout=timeout)
---> 54 raise_for_status(r)
55 if not r.charset:
56 r.charset = 'ascii'
/opt/conda/lib/python3.7/site-packages/pydap/net.py in raise_for_status(response)
37 detail=response.status+'\n'+response.text,
38 headers=response.headers,
---> 39 comment=response.body
40 )
41
HTTPError: 404 Not Found
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<link rel='stylesheet' href='/opendap/docs/css/contents.css' type='text/css'/>
<title>Hyrax: Resource Not Found</title>
</head>
<body>
<p align="left"> </p>
<h1 align="center">Hyrax - Resource Not Found (404) </h1>
<hr align="left" size="1" noshade="noshade"/>
<table width="100%" border="0">
<tr>
<td>
<a href="/opendap/docs/images/largeEarth.jpg">
<img src="/opendap/docs/images/smallEarth.jpg"
alt="I looked everywhere!"
title="I looked everywhere!"
border="0"/>
</a>
</td>
<td>
<p align="left">The URL requested does not describe a resource that can be found on this server.</p>
<p align="left">If you would like to start at the top level of this server, go <a
href="/opendap/"><strong>HERE</strong></a>.</p>
<p align="left">The specific error message associated with your request was:</p>
<blockquote> <p><strong>Failed to locate resource: /MOD13Q1.006/h00v08.ncml.nc4.dds </strong></p> </blockquote>
<p align="left">If you think that the server is broken (that the URL you submitted should have worked),
then please contact the OPeNDAP user support coordinator at: <a href="mailto:lpdaac@usgs.gov">lpdaac@usgs.gov</a>
</p>
</td>
</tr>
</table>
<hr align="left" size="1" noshade="noshade"/>
<h1 align="center">Hyrax - Resource Not Found (404) </h1>
</body>
</html>
バージョン情報:
xr.show_versions()
INSTALLED VERSIONS
------------------
commit: None
python: 3.7.3 | packaged by conda-forge | (default, Mar 27 2019, 23:01:00)
[GCC 7.3.0]
python-bits: 64
OS: Linux
OS-release: 4.4.0-150-generic
machine: x86_64
processor: x86_64
byteorder: little
LC_ALL: en_US.UTF-8
LANG: en_US.UTF-8
LOCALE: en_US.UTF-8
libhdf5: 1.10.4
libnetcdf: 4.6.2
xarray: 0.12.1
pandas: 0.24.2
numpy: 1.15.4
scipy: 1.2.1
netCDF4: 1.5.1.2
pydap: installed
h5netcdf: None
h5py: 2.9.0
Nio: None
zarr: 2.3.2
cftime: 1.0.3.4
nc_time_axis: None
PseudonetCDF: None
rasterio: 1.0.24
cfgrib: None
iris: None
bottleneck: 1.2.1
dask: 1.2.2
distributed: 1.28.0
matplotlib: 3.0.3
cartopy: 0.17.0
seaborn: 0.9.0
setuptools: 41.0.1
pip: 19.1.1
conda: 4.6.14
pytest: None
IPython: 7.5.0
sphinx: None