podpacdatalib's Introduction

PODPAC DATALIB

Pipeline for Observation Data Processing Analysis and Collaboration

Data wrangling and processing of geospatial data should be seamless so that earth scientists can focus on science.

The purpose of PODPAC is to facilitate:

Access of data products
Subsetting of data products
Projecting and interpolating data products
Combining/compositing data products
Analysis of data products
Sharing of algorithms and data products
Use of cloud computing architectures (AWS) for processing

The purpose of this companion repository is to provide access to specific, publically available datasets using PODPAC.

Installation

To install podpacdatalib, use:

pip install podpacdatalib

Documentation

The official PODPAC documentation is available here: https://podpac.org

For usage examples, see the podpac-examples repository.

Acknowledgments

This material is based upon work supported by NASA under Contract No 80NSSC18C0061.

podpacdatalib's People

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podpacdatalib's Issues

TerrainTiles Node returns nan's for edges of a domain--sometimes

Description
Terrain tiles node returns nan's on some of the edges of some tiles some of the time.

Steps to Reproduce

>>> import podpac
>>> url = "https://mobility-devel.crearecomputing.com/geowatch?&SERVICE=WMS&REQUEST=GetMap&VERSION=1.3.0&LAYERS=datalib.terraintiles.TerrainTiles&STYLES=&FORMAT=image%2Fpng&TRANSPARENT=true&HEIGHT=256&WIDTH=256&TIME=2021-03-01T12%3A00%3A00.000Z&CRS=EPSG%3A3857&BBOX=-17532819.799940586,-2504688.542848655,-15028131.257091932,-7.081154551613622e-10&PARAMS=%7B%22style%22%3A%7B%22colormap%22%3A%22terrain%22%2C%22clim%22%3A%5B0%2C5000%5D%7D%7D"
>>> node = podpac.Node.from_url(url)
>>> coords = podpac.Coordinates.from_url(url)
>>> node.eval(coords)
INFO:podpac.core.data.file_source:Loading AWS resource: s3://elevation-tiles-prod/geotiff/4/1/8.tif
INFO:podpac.core.data.file_source:Loading AWS resource: s3://elevation-tiles-prod/geotiff/4/2/8.tif
INFO:podpac.core.data.file_source:Loading AWS resource: s3://elevation-tiles-prod/geotiff/4/1/9.tif
INFO:podpac.core.data.file_source:Loading AWS resource: s3://elevation-tiles-prod/geotiff/4/2/9.tif
<xarray.UnitsDataArray (lat: 256, lon: 256)>
array([[   nan, -5046., -4847., ..., -2726., -2738., -2630.],
       [   nan, -5041., -4938., ..., -2763., -2941., -1723.],
       [   nan, -5020., -5032., ..., -2056., -2558., -2256.],
       ...,
       [   nan, -3901., -3653., ..., -4235., -4237., -4226.],
       [   nan, -4281., -4173., ..., -4267., -4247., -4258.],
       [   nan, -4240., -4330., ..., -4358., -4327., -4392.]])
Coordinates:
  * lat      (lat) float64 -2.505e+06 -2.495e+06 ... -9.822e+03 -9.313e-10
  * lon      (lon) float64 -1.753e+07 -1.752e+07 ... -1.504e+07 -1.503e+07
Attributes:
    layer_style:   <podpac.core.style.Style object at 0x7f500cdbd8e0>
    crs:           EPSG:3857
    geotransform:  (-17537730.953946173, 9822.308011171193, 0.0, -2509599.696...

Expected Behavior
There should be data there.

Observed Behavior
There are Nans.