Adding IMERG Data source

[NickGeneva]

Earth2Studio Pull Request

Description

Adding IMERG data source, the first data source using NASA's earth data portal. Validated output / transforms by comparing WB2 and IMERG at specific time. Both have the same larger structures indicating transforms are correct.

    from earth2studio.data import WB2ERA5

    date = datetime.datetime(year=2002, month=10, day=1)

    wbds = WB2ERA5(cache=False)
    imergds = IMERG(cache=False)

    wb_data = wbds(time=date, variable=["tp06"])
    im_data = imergds(time=date, variable=["tp"])

    import matplotlib.pyplot as plt
    from matplotlib.colors import LogNorm

    fig, ax = plt.subplots(1, 2)

    ax[0].imshow(wb_data.values[0, 0] + 0.001, norm=LogNorm(vmin=0.0001, vmax=1))
    ax[0].set_title("ERA5")
    ax[1].imshow(im_data.values[0, 0] + 0.001, norm=LogNorm(vmin=0.0001, vmax=1))
    ax[1].set_title("IMERG")

    plt.savefig("test.png")

Checklist

• [x] I am familiar with the Contributing Guidelines.
• [ ] New or existing tests cover these changes.
• [x] The documentation is up to date with these changes.
• [x] The CHANGELOG.md is up to date with these changes.
• [ ] An issue is linked to this pull request.

Dependencies

[NickGeneva]

/blossom-ci