diff --git a/catalog/catalog.json b/catalog/catalog.json
index 6dcea84eaf035098a60635beca953674793f608a..d7442a781b9cb9f88f8b3028ca7ff0df580d6386 100644
--- a/catalog/catalog.json
+++ b/catalog/catalog.json
@@ -38,6 +38,11 @@
"rel": "child",
"href": "./iclus_hc/collection.json",
"type": "application/json"
+ },
+ {
+ "rel": "child",
+ "href": "./macav2_historical_daily/collection.json",
+ "type": "application/json"
}
]
}
\ No newline at end of file
diff --git a/catalog/macav2_historical_daily/collection.json b/catalog/macav2_historical_daily/collection.json
new file mode 100644
index 0000000000000000000000000000000000000000..ef6940dcd3780f882f9797cef4fbbe511f1e438c
--- /dev/null
+++ b/catalog/macav2_historical_daily/collection.json
@@ -0,0 +1,1884 @@
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+ {
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+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Eastward Wind",
+ "unit": "m s-1"
+ },
+ "uas_bcc-csm1-1-m_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Eastward Wind",
+ "unit": "m s-1"
+ },
+ "uas_bcc-csm1-1_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Eastward Wind",
+ "unit": "m s-1"
+ },
+ "uas_inmcm4_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Eastward Wind",
+ "unit": "m s-1"
+ },
+ "vas_BNU-ESM_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_CCSM4_r6i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_CNRM-CM5_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_CSIRO-Mk3-6-0_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_CanESM2_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_GFDL-ESM2G_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_GFDL-ESM2M_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_HadGEM2-CC365_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_HadGEM2-ES365_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_IPSL-CM5A-LR_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_IPSL-CM5A-MR_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_IPSL-CM5B-LR_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_MIROC-ESM-CHEM_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_MIROC-ESM_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_MIROC5_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_MRI-CGCM3_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_NorESM1-M_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_bcc-csm1-1-m_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_bcc-csm1-1_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ },
+ "vas_inmcm4_r1i1p1_historical": {
+ "dimensions": [
+ "time",
+ "lat",
+ "lon"
+ ],
+ "type": "data",
+ "description": "Northward Wind",
+ "unit": "m s-1"
+ }
+ },
+ "extent": {
+ "spatial": {
+ "bbox": [
+ [
+ 235.22784423828125,
+ 25.063077926635742,
+ 292.93524169921875,
+ 49.39602279663086
+ ]
+ ]
+ },
+ "temporal": {
+ "interval": [
+ [
+ "1950-01-01T00:00:00Z",
+ "2005-12-31T00:00:00Z"
+ ]
+ ]
+ }
+ },
+ "license": "CC0-1.0",
+ "assets": {
+ "zarr-s3-osn": {
+ "href": "s3://mdmf/gdp/macav2_historical_daily.zarr/",
+ "type": "application/vnd+zarr",
+ "description": "Open Storage Network Pod S3 API access to collection zarr group",
+ "xarray:open_kwargs": {
+ "chunks": {},
+ "engine": "zarr",
+ "consolidated": true
+ },
+ "xarray:storage_options": {
+ "anon": true,
+ "client_kwargs": {
+ "endpoint_url": "https://usgs.osn.mghpcc.org/"
+ }
+ },
+ "roles": [
+ "data",
+ "zarr",
+ "s3"
+ ]
+ },
+ "zarr-s3": {
+ "href": "s3://nhgf-development/workspace/DataConversion/macav2_historical_daily.zarr/",
+ "type": "application/vnd+zarr",
+ "description": "S3 access to collection zarr group",
+ "xarray:open_kwargs": {
+ "chunks": {},
+ "engine": "zarr",
+ "consolidated": true
+ },
+ "xarray:storage_options": {
+ "requester_pays": true
+ },
+ "roles": [
+ "data",
+ "zarr",
+ "s3"
+ ]
+ }
+ }
+}
\ No newline at end of file
diff --git a/workflows/archive/macav2_historical_daily_create_collection_from_zarr.ipynb b/workflows/archive/macav2_historical_daily_create_collection_from_zarr.ipynb
new file mode 100644
index 0000000000000000000000000000000000000000..5e85db9082fea5611cde25eb8cdc942c0a7d4645
--- /dev/null
+++ b/workflows/archive/macav2_historical_daily_create_collection_from_zarr.ipynb
@@ -0,0 +1,924 @@
+{
+ "cells": [
+ {
+ "cell_type": "markdown",
+ "id": "6c10e07b-1e60-4926-af1d-fa75dc78e5d4",
+ "metadata": {
+ "tags": []
+ },
+ "source": [
+ "# CONUS404 Daily Zarr -> Collection Workflow\n",
+ "This is a workflow to build a [STAC collection](https://github.com/radiantearth/stac-spec/blob/master/collection-spec/collection-spec.md) from the zarr asset for the dataset named above. We use the [datacube extension](https://github.com/stac-extensions/datacube) to define the spatial and temporal dimensions of the zarr store, as well as the variables it contains.\n",
+ "\n",
+ "To simplify this workflow so that it can scale to many datasets, a few simplifying suggestions and assumptions are made:\n",
+ "1. For USGS data, we can use the CC0-1.0 license. For all other data we can use Unlicense. Ref: https://spdx.org/licenses/\n",
+ "2. I am assuming all coordinates are from the WGS84 datum if not specified."
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "201e0945-de55-45ff-b095-c2af009a4e62",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "import pystac\n",
+ "from pystac.extensions.datacube import CollectionDatacubeExtension, AssetDatacubeExtension, AdditionalDimension, DatacubeExtension\n",
+ "import xarray as xr\n",
+ "import cf_xarray\n",
+ "import os\n",
+ "import fsspec\n",
+ "import cf_xarray\n",
+ "import hvplot.xarray\n",
+ "import pandas as pd\n",
+ "import json\n",
+ "import numpy as np\n",
+ "import metpy\n",
+ "import cartopy.crs as ccrs\n",
+ "import cfunits\n",
+ "import json"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "20b00e88-5a13-46b3-9787-d9ac2d4e7bd6",
+ "metadata": {},
+ "source": [
+ "## Open up NHGF STAC Catalog"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "adf6c59d-58cd-48b1-a5fd-3bb205a3ef56",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# define folder location where your STAC catalog json file is\n",
+ "catalog_path = os.path.join('..', '..', 'catalog')\n",
+ "# open catalog\n",
+ "catalog = pystac.Catalog.from_file(os.path.join(catalog_path, 'catalog.json'))"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "996e60ba-13e4-453a-8534-e62ce747f0fa",
+ "metadata": {},
+ "source": [
+ "## Collection Metadata Input"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "482d204d-b5b6-40e5-ac42-55b459be1097",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# name for STAC collection\n",
+ "collection_id = 'macav2_historical_daily'\n",
+ "# description of STAC collection\n",
+ "collection_description = 'macav2_historical_daily'\n",
+ "# license for dataset\n",
+ "collection_license = 'CC0-1.0'"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "116b5837-8e85-4ae7-964a-803533ded714",
+ "metadata": {},
+ "source": [
+ "## Asset Metadata Input"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "dd6fa323-132a-4794-8c80-576933f547a0",
+ "metadata": {
+ "tags": []
+ },
+ "outputs": [],
+ "source": [
+ "# url to zarr store that you want to create a collection for\n",
+ "zarr_url = 's3://mdmf/gdp/macav2_historical_daily.zarr/'\n",
+ "\n",
+ "# define keyword arguments needed for opening the dataset with xarray\n",
+ "# ref: https://github.com/stac-extensions/xarray-assets\n",
+ "xarray_opendataset_kwargs = {\"xarray:open_kwargs\":{\"chunks\":{},\"engine\":\"zarr\",\"consolidated\":True},\n",
+ " \"xarray:storage_options\": {\"anon\": True, \"client_kwargs\": {\"endpoint_url\":\"https://usgs.osn.mghpcc.org/\"}}}\n",
+ "# description for zarr url asset attached to collection (zarr_url)\n",
+ "asset_description = \"Open Storage Network Pod S3 API access to collection zarr group\"\n",
+ "# roles to tag zarr url asset with\n",
+ "asset_roles = [\"data\",\"zarr\",\"s3\"]"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "e1441cd4-e94c-4902-af46-8f1af470eb6b",
+ "metadata": {
+ "tags": []
+ },
+ "outputs": [],
+ "source": [
+ "# url to zarr store that you want to create a collection for\n",
+ "zarr_url2 = 's3://nhgf-development/workspace/DataConversion/macav2_historical_daily.zarr/'\n",
+ "\n",
+ "# define keyword arguments needed for opening the dataset with xarray\n",
+ "# ref: https://github.com/stac-extensions/xarray-assets\n",
+ "xarray_opendataset_kwargs2 = {\"xarray:open_kwargs\":{\"chunks\":{},\"engine\":\"zarr\",\"consolidated\":True},\n",
+ " \"xarray:storage_options\":{\"requester_pays\":True}}\n",
+ "# description for zarr url asset attached to collection (zarr_url)\n",
+ "asset_description2 = \"S3 access to collection zarr group\"\n",
+ "# roles to tag zarr url asset with\n",
+ "asset_roles2 = [\"data\",\"zarr\",\"s3\"]"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "b213b74f-ad17-4774-93b6-3b62be616b45",
+ "metadata": {
+ "tags": []
+ },
+ "source": [
+ "## Data Exploration"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "708f2cf5-79ab-49af-8067-de31d0d13ee6",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# open and view zarr dataset\n",
+ "fs2 = fsspec.filesystem('s3', anon=True, endpoint_url='https://usgs.osn.mghpcc.org/')\n",
+ "ds = xr.open_dataset(fs2.get_mapper(zarr_url), engine='zarr', \n",
+ " backend_kwargs={'consolidated':True}, chunks={})\n",
+ "ds"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "0bc7e9b3-ad62-4b10-a18e-66b7ed2d35dc",
+ "metadata": {},
+ "source": [
+ "## Identify x, y, t dimensions of dataset\n",
+ "May require user input if dimensions cannot be auto-detected."
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "ab91268f-7200-4cb1-979a-c7d75531d2c0",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# dims_auto_extract = ['X', 'Y', 'T']\n",
+ "# def extract_dim(ds, d):\n",
+ "# try:\n",
+ "# dim_list = ds.cf.axes[d]\n",
+ "# assert len(dim_list)==1, f'There are too many {d} dimensions in this dataset.'\n",
+ "# dim = dim_list[0]\n",
+ "# except KeyError:\n",
+ "# print(f\"Could not auto-extract {d} dimension name.\")\n",
+ "# print(\"Look at the xarray output above showing the dataset dimensions.\")\n",
+ "# dim = str(input(f\"What is the name of the {d} dimension of this dataset?\"))\n",
+ "# assert dim in ds.dims, \"That is not a valid dimension name for this dataset\"\n",
+ "# print(f\"name of {d} dimension: {dim}\\n\")\n",
+ "# return dim\n",
+ "\n",
+ "# dim_names_dict = {}\n",
+ "# for d in dims_auto_extract:\n",
+ "# dim_names_dict[d] = extract_dim(ds, d)\n",
+ "dim_names_dict = {'X': 'lon', 'Y': 'lat', 'T': 'time'}\n",
+ "print(f\"Dimension dictionary: {dim_names_dict}\")"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "810d7480-165d-41c0-bd09-163656a14003",
+ "metadata": {},
+ "source": [
+ "## Get crs info"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "b03d52f3-1367-4255-a561-52ee4fc9e92d",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "ds = ds.metpy.parse_cf()\n",
+ "crs = ds[list(ds.keys())[0]].metpy.cartopy_crs"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "8fbfecfb-9886-4d06-a34c-6471cb0a6053",
+ "metadata": {},
+ "source": [
+ "## Plot a map"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "4eb4d027-4266-4a0b-8f16-bacfbef06242",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# # plot a map of a single variable\n",
+ "# var_to_plot = 'SNOW'\n",
+ "# da = ds[var_to_plot].sel(time='2014-03-01 00:00').load()\n",
+ "# da.hvplot.quadmesh(x='lon', y='lat', rasterize=True,\n",
+ "# geo=True, tiles='OSM', alpha=0.7, cmap='turbo')"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "5e057a6c-06fb-4406-823b-e81c58e520e4",
+ "metadata": {},
+ "source": [
+ "## Plot a time series at a specific point\n",
+ "This can help you verify a variable's values"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "c7de2681-88c2-4597-857c-8f169c596f8b",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# # enter lat, lon of point you want to plot time series for\n",
+ "# lat,lon = 39.978322,-105.2772194\n",
+ "# time_start = '2013-01-01 00:00'\n",
+ "# time_end = '2013-12-31 00:00'\n",
+ "# x, y = crs.transform_point(lon, lat, src_crs=ccrs.PlateCarree()) # PlateCaree = Lat,Lon\n",
+ "# da = ds[var_to_plot].sel(x=x, y=y, method='nearest').sel(time=slice(time_start,time_end)).load()\n",
+ "# da.hvplot(x=dim_names_dict['T'], grid=True)"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "a8c3ed37-8564-400b-a7fb-25bd5e43d21c",
+ "metadata": {},
+ "source": [
+ "## Create Collection Extent"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "69f0d837-68a5-4fed-9a14-5d75cfbb0da4",
+ "metadata": {},
+ "source": [
+ "### Spatial Extent\n",
+ "##### WARNING - make sure data type is **float** NOT **numpy.float64**"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "d46805e0-8e94-4ebe-aa01-d9a2d7051459",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# pull out lat/lon bbox for data\n",
+ "# coordinates must be from WGS 84 datum\n",
+ "# left, bottom, right, top\n",
+ "\n",
+ "# Note: try changing around the commented out lines below to get type float ratherthan a numpy float\n",
+ "#coord_bounds = [ds[dim_names_dict['X']].data.min().compute().astype(float), ds[dim_names_dict['Y']].data.min().compute().astype(float), ds[dim_names_dict['X']].data.max().compute().astype(float), ds[dim_names_dict['Y']].data.max().compute().astype(float)]\n",
+ "#coord_bounds = [ds[dim_names_dict['X']].data.min().compute().astype(float).tolist(), ds[dim_names_dict['Y']].data.min().compute().astype(float).tolist(), ds[dim_names_dict['X']].data.max().compute().astype(float).tolist(), ds[dim_names_dict['Y']].data.max().compute().astype(float).tolist()]\n",
+ "coord_bounds = [ds[dim_names_dict['X']].data.min().astype(float).item(), ds[dim_names_dict['Y']].data.min().astype(float).item(), ds[dim_names_dict['X']].data.max().astype(float).item(), ds[dim_names_dict['Y']].data.max().astype(float).item()]\n",
+ "print(coord_bounds)\n",
+ "print(f'\\ncoord_bounds data type: {type(coord_bounds[0])}')\n",
+ "# create a spatial extent object \n",
+ "spatial_extent = pystac.SpatialExtent(bboxes=[coord_bounds])"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "a04c8fca-1d33-43ac-9e2b-62d7be2887f7",
+ "metadata": {},
+ "source": [
+ "### Temporal Extent"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "41a84995-867c-4152-8c57-85e3758bbb77",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# pull out first and last timestamps\n",
+ "temporal_extent_lower = pd.Timestamp(ds[dim_names_dict['T']].data.min())\n",
+ "temporal_extent_upper = pd.Timestamp(ds[dim_names_dict['T']].data.max())\n",
+ "print(f'min: {temporal_extent_lower} \\nmax: {temporal_extent_upper}')\n",
+ "# create a temporal extent object\n",
+ "temporal_extent = pystac.TemporalExtent(intervals=[[temporal_extent_lower, temporal_extent_upper]])"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "1b1e37c4-5348-46ad-abc9-e005b5d6c02b",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "collection_extent = pystac.Extent(spatial=spatial_extent, temporal=temporal_extent)"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "cfb71202-03df-45b5-ac2f-0dc2ee1ab780",
+ "metadata": {},
+ "source": [
+ "## Create pystac collection"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "7e96811b-95ae-406a-9728-55fc429d4e1f",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "if catalog.get_child(collection_id):\n",
+ " collection = catalog.get_child(collection_id)\n",
+ " print(\"existing collection opened\")\n",
+ " collection.extent=collection_extent\n",
+ " collection.description=collection_description\n",
+ " collection.license=collection_license\n",
+ "else:\n",
+ " collection = pystac.Collection(id=collection_id,\n",
+ " description=collection_description,\n",
+ " extent=collection_extent,\n",
+ " license=collection_license)\n",
+ " print(\"new collection created\")"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "a21c76e8-cd57-4eb5-a33f-7c668a3b3205",
+ "metadata": {},
+ "source": [
+ "## Add zarr url asset to collection"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "094832af-d22b-4359-b0f6-cf687acce5cc",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "asset_id = \"zarr-s3-osn\"\n",
+ "asset = pystac.Asset(href=zarr_url,\n",
+ " description=asset_description,\n",
+ " media_type=\"application/vnd+zarr\",\n",
+ " roles=asset_roles,\n",
+ " extra_fields = xarray_opendataset_kwargs)\n",
+ "collection.add_asset(asset_id, asset)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "0c298d07-f234-4a08-986d-87f4a39e9ae6",
+ "metadata": {
+ "tags": []
+ },
+ "outputs": [],
+ "source": [
+ "asset_id2 = \"zarr-s3\"\n",
+ "asset2 = pystac.Asset(href=zarr_url2,\n",
+ " description=asset_description2,\n",
+ " media_type=\"application/vnd+zarr\",\n",
+ " roles=asset_roles2,\n",
+ " extra_fields = xarray_opendataset_kwargs2)\n",
+ "collection.add_asset(asset_id2, asset2)"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "f67cd5c9-db33-45c2-bc21-480cd67354f4",
+ "metadata": {},
+ "source": [
+ "## Add datacube extension to collection"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "fc00946d-2880-491d-9b3b-3aeeb4414d6c",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# instantiate extention on collection\n",
+ "dc = DatacubeExtension.ext(collection, add_if_missing=True)"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "8bdd77a2-7587-485e-afb7-42af3a822241",
+ "metadata": {},
+ "source": [
+ "### Add cube dimensions (required field for extension)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "120a4914-3302-44a5-a282-0308ac84f040",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# list out dataset dimensions\n",
+ "# When writing data to Zarr, Xarray sets this attribute on all variables based on the variable dimensions. When reading a Zarr group, Xarray looks for this attribute on all arrays,\n",
+ "# raising an error if it can’t be found.\n",
+ "dims = list(ds.dims)\n",
+ "print(dims)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "00a18a29-fb9a-4b56-8009-493122997b16",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# get x, y bounds for extent of those dimensions (required)\n",
+ "xy_bounds = [ds[dim_names_dict['X']].data.min().astype(float).item(), ds[dim_names_dict['Y']].data.min().astype(float).item(), ds[dim_names_dict['X']].data.max().astype(float).item(), ds[dim_names_dict['Y']].data.max().astype(float).item()]\n",
+ "print(xy_bounds)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "0f49d6d7-9e30-4144-909b-fa1238e6c77a",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "def get_step(ds, dim_name, time_dim=False, debug=False, step_ix=0, round_dec=None):\n",
+ " dim_vals = ds[dim_name].values\n",
+ " diffs = [d2 - d1 for d1, d2 in zip(dim_vals, dim_vals[1:])]\n",
+ " # option to round number of decimals\n",
+ " # sometimes there are different steps calculated due to small rounding errors coming out of the diff\n",
+ " # calculation, rounding these can correct for that\n",
+ " if round_dec:\n",
+ " unique_steps = np.unique(np.array(diffs).round(decimals=round_dec), return_counts=True)\n",
+ " else:\n",
+ " unique_steps = np.unique(diffs, return_counts=True)\n",
+ " step_list = unique_steps[0]\n",
+ " # optional - for invesitgating uneven steps\n",
+ " if debug:\n",
+ " print(f'step_list: {step_list}')\n",
+ " print(f'step_count: {unique_steps[1]}')\n",
+ " indices = [i for i, x in enumerate(diffs) if x == step_list[step_ix]]\n",
+ " print(f'index locations of step index {step_ix} in step_list: {indices}')\n",
+ " # set step - if all steps are the same length\n",
+ " # datacube spec specifies to use null for irregularly spaced steps\n",
+ " if len(step_list)==1:\n",
+ " if time_dim:\n",
+ " # make sure time deltas are in np timedelta format\n",
+ " step_list = [np.array([step], dtype=\"timedelta64[ns]\")[0] for step in step_list]\n",
+ " step = step_list[0].astype(float).item()\n",
+ " else:\n",
+ " step = None\n",
+ " return(step)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "a20d12bf-a511-4c5e-84d0-77e2ec551518",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "def get_long_name(ds, v):\n",
+ " # try to get long_name attribute from variable\n",
+ " try:\n",
+ " long_name = ds[v].attrs['long_name']\n",
+ " # otherwise, leave empty\n",
+ " except:\n",
+ " long_name = None\n",
+ " return long_name"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "e7dc357c-91ec-49ae-83e5-400f791f9792",
+ "metadata": {},
+ "source": [
+ "#### user input needed - you will need to look at the crs information and create a cartopy crs object after identifying the projection type:\n",
+ "reference list of cartopy projections: https://scitools.org.uk/cartopy/docs/latest/reference/projections.html"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "ea452f62-5644-49b6-8a4e-7dc4f649fd1a",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# print out crs information in dataset\n",
+ "print(crs)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "1b1d05ff-8e43-44a7-8343-178b112c4ad6",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# # create the appropriate cartopy projection\n",
+ "# lcc = ccrs.LambertConformal(central_longitude=crs_info.longitude_of_central_meridian, \n",
+ "# central_latitude=crs_info.latitude_of_projection_origin,\n",
+ "# standard_parallels=crs_info.standard_parallel)\n",
+ "# # the datacube extension can accept reference_system information as a numerical EPSG code, \n",
+ "# # WKT2 (ISO 19162) string or PROJJSON object.\n",
+ "# # we will use a projjson, as was done by Microsoft Planetary Computer here:\n",
+ "# # https://planetarycomputer.microsoft.com/dataset/daymet-annual-na\n",
+ "# # https://planetarycomputer.microsoft.com/api/stac/v1/collections/daymet-annual-na\n",
+ "# projjson = json.loads(lcc.to_json())\n",
+ "\n",
+ "# alternatively, I think we could do this:\n",
+ "projjson = crs.to_json()\n",
+ "print(projjson)"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "b6b88ee9-60c2-4d91-af74-c1c56b094826",
+ "metadata": {},
+ "source": [
+ "#### user review needed - looks at the steps pulled out and make sure they make sense"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "9e2bbcc5-e45a-4b8c-9d60-601f345e8134",
+ "metadata": {},
+ "source": [
+ "**Time**"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "82f1e9bd-52ee-46f5-9e95-c2359d95fcf3",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "time_step = pd.Timedelta(get_step(ds, dim_names_dict['T'], time_dim=True)).isoformat()\n",
+ "print(f'time step: {time_step}')"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "64be65b2-de20-447a-a9c2-bd8eca3e440e",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# # debugging for time steps: get all step values and locations\n",
+ "# time_step = get_step(ds, dim_names_dict['T'], time_dim=True, debug=True, step_ix=1)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "bc8dff39-2a2e-44a0-9b30-987107c2d1e2",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# # debugging for time steps, cont:\n",
+ "# # please choose one of the index locations printed above\n",
+ "# # this will print the time steps adjacent to it\n",
+ "# ix = 3343\n",
+ "# ds.isel(time=slice(ix-1,ix+3)).time"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "9aa6c8ff-8d9b-40a7-a281-39b502bd5a3d",
+ "metadata": {},
+ "source": [
+ "**X/lon**\n",
+ "\n",
+ "There are 3 different x step lengths in this dataset that are very close together:\n",
+ "`[0.04165649 0.04167175 0.04168701]`\n",
+ "They do seem to be real differences in the data, but from what I can tell, the resolution of this dataset is 1/24-degree, so I am going to round these so that the x step can be included."
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "a8ba7695-ca45-4db2-bd46-c465f4e37eff",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "x_step = get_step(ds, dim_names_dict['X'], round_dec=4)\n",
+ "print(f'x step: {x_step}')"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "fac4c9f2-a952-4c7f-aa32-862957372d6f",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# # debugging for spatial steps: get all step values and locations\n",
+ "# x_dim=dim_names_dict['X']\n",
+ "# x_step = get_step(ds, x_dim, debug=True, step_ix=1)\n",
+ "# print(f'\\nx dim name (for next cell): {x_dim}')"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "8d0b5a2d-dc58-4ad6-b890-859ce6bb08de",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# # debugging for spatial steps, cont:\n",
+ "# # please choose one of the index locations printed above\n",
+ "# # this will print the time steps adjacent to it\n",
+ "# ix = 5\n",
+ "# ds.isel(lon=slice(ix-1,ix+3)).lon"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "21b5cca4-8bb4-498d-ae6b-6b8545fffe56",
+ "metadata": {},
+ "source": [
+ "**Y/lat**\n",
+ "\n",
+ "There are 3 different y step lengths in this dataset that are very close together:\n",
+ "`[0.04166412 0.04166603 0.04166794]`\n",
+ "They do seem to be real differences in the data, but from what I can tell, the resolution of this dataset is 1/24-degree, so I am going to round these so that the y step can be included."
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "7405583b-ecb9-44b0-8815-048e42e55a42",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "y_step = get_step(ds, dim_names_dict['Y'], round_dec=4)\n",
+ "print(f'y step: {y_step}')"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "ece0fe37-b54c-4721-aa9b-33d2998d191b",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# # debugging for spatial steps: get all step values and locations\n",
+ "# y_dim=dim_names_dict['Y']\n",
+ "# y_step = get_step(ds, y_dim, debug=True, step_ix=1)\n",
+ "# print(f'\\nx dim name (for next cell): {x_dim}')"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "abdafb8f-5217-4b82-91b6-eec8183c9128",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# # debugging for spatial steps, cont:\n",
+ "# # please choose one of the index locations printed above\n",
+ "# # this will print the time steps adjacent to it\n",
+ "# ix = 5\n",
+ "# ds.isel(y=slice(ix-1,ix+3)).y"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "00a5e041-081d-428d-ac2e-75d16de205e6",
+ "metadata": {},
+ "source": [
+ "#### user input needed - you will need to copy all of the dimensions printed below into the dict and fill in the appropriate attributes(type, axis, extent, etc.):\n",
+ "\n",
+ "Please see [datacube spec](https://github.com/stac-extensions/datacube?tab=readme-ov-file#dimension-object) for details on required fields.\n",
+ "\n",
+ "If you have a dimension like \"bnds\" that is used on variables like time_bnds, lon_bnds, lat_bnds to choose either the lower or upper bound, you can use and [additional dimension object](https://github.com/stac-extensions/datacube?tab=readme-ov-file#additional-dimension-object). We recommend making the type \"count\" as Microsoft Planetary Computer did [here](https://github.com/stac-extensions/datacube/blob/9e74fa706c9bdd971e01739cf18dcc53bdd3dd4f/examples/daymet-hi-annual.json#L76)."
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "acd45d3c-7845-47e6-9b7d-e35627a7ca9a",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "print(dims)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "5a443497-67a9-4dce-a8e9-b08d31a88223",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# create a dictionary of datacube dimensions you would like to assign to this dataset\n",
+ "# dimension name should come from the dims printed in above cell\n",
+ "\n",
+ "# x, y, t dimension info is pulled out automatically using the dim dict we created above\n",
+ "# all other dims listed in above cell need to be manually written in\n",
+ "\n",
+ "# we do not recommend including redundant dimensions (do not include x,y if you have lon,lat)\n",
+ "# note that the extent of each dimension should be pulled from the dataset\n",
+ "dims_dict = {dim_names_dict['T']: pystac.extensions.datacube.Dimension({'type': 'temporal', 'description': get_long_name(ds, dim_names_dict['T']), 'extent': [temporal_extent_lower.strftime('%Y-%m-%dT%XZ'), temporal_extent_upper.strftime('%Y-%m-%dT%XZ')], 'step':time_step}),\n",
+ " dim_names_dict['X']: pystac.extensions.datacube.Dimension({'type': 'spatial', 'axis': 'x', 'description': get_long_name(ds, dim_names_dict['X']), 'extent': [xy_bounds[0], xy_bounds[2]], 'step': x_step, 'reference_system': projjson}),\n",
+ " dim_names_dict['Y']: pystac.extensions.datacube.Dimension({'type': 'spatial', 'axis': 'y', 'description': get_long_name(ds, dim_names_dict['Y']), 'extent': [xy_bounds[1], xy_bounds[3]], 'step': y_step, 'reference_system': projjson}),\n",
+ " }"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "0f277883-a3fd-425f-966a-ca2140d0ef2f",
+ "metadata": {},
+ "source": [
+ "### Add cube variables (optional field for extension)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "92510876-7853-4d24-8563-c69f9012aeb6",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# define functions to pull out datacube attributes and validate format\n",
+ "def get_unit(ds, v):\n",
+ " # check if unit is defined for variable\n",
+ " try:\n",
+ " unit = ds[v].attrs['units']\n",
+ " except:\n",
+ " unit = None\n",
+ " # check if unit comes from https://docs.unidata.ucar.edu/udunits/current/#Database\n",
+ " # datacube extension specifies: The unit of measurement for the data, preferably compliant to UDUNITS-2 units (singular).\n",
+ " # gdptools expects this format as well\n",
+ " try:\n",
+ " cfunits.Units(unit).isvalid\n",
+ " except:\n",
+ " print(\"Unit is not valid as a UD unit.\")\n",
+ " unit = str(input(\"Please enter a valid unit for {v} from here: https://docs.unidata.ucar.edu/udunits/current/#Database\"))\n",
+ " assert cfunits.Units(unit).isvalid\n",
+ " return unit\n",
+ "\n",
+ "def get_var_type(ds, v):\n",
+ " if v in ds.coords:\n",
+ " # type = auxiliary for a variable that contains coordinate data, but isn't a dimension in cube:dimensions.\n",
+ " # For example, the values of the datacube might be provided in the projected coordinate reference system, \n",
+ " # but the datacube could have a variable lon with dimensions (y, x), giving the longitude at each point.\n",
+ " var_type = 'auxiliary'\n",
+ " # type = data for a variable indicating some measured value, for example \"precipitation\", \"temperature\", etc.\n",
+ " else:\n",
+ " var_type = 'data'\n",
+ " return var_type"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "e9272931-fc0b-4f2a-9546-283033e9cde8",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# drop metpy_crs coordinate we have added\n",
+ "if 'metpy_crs' in ds.coords:\n",
+ " ds = ds.drop_vars('metpy_crs')\n",
+ "\n",
+ "# pull list of vars from dataset\n",
+ "vars = list(ds.variables)\n",
+ "\n",
+ "# spec says that the keys of cube:dimensions and cube:variables should be unique together; a key like lat should not be both a dimension and a variable.\n",
+ "# we will drop all values in dims from vars\n",
+ "vars = [v for v in vars if v not in dims]\n",
+ "\n",
+ "# Microsoft Planetary Computer includes coordinates and crs as variables here:\n",
+ "# https://planetarycomputer.microsoft.com/dataset/daymet-annual-na\n",
+ "# https://planetarycomputer.microsoft.com/api/stac/v1/collections/daymet-annual-na\n",
+ "# we will keep those in the var list\n",
+ "\n",
+ "# create dictionary of dataset variables and associated dimensions\n",
+ "vars_dict={}\n",
+ "for v in vars:\n",
+ " unit = get_unit(ds, v)\n",
+ " var_type = get_var_type(ds, v)\n",
+ " long_name = get_long_name(ds, v)\n",
+ " vars_dict[v] = pystac.extensions.datacube.Variable({'dimensions':list(ds[v].dims), 'type': var_type, 'description': long_name, 'unit': unit})"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "11ad5352-884c-4472-8864-4570a96f66e5",
+ "metadata": {},
+ "source": [
+ "### Finalize extension"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "10141fd4-91d6-491d-878b-02653720891d",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# add dimesions and variables to collection extension\n",
+ "dc.apply(dimensions=dims_dict, variables=vars_dict)"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "615ca168-75fb-4135-9941-0ef5fe4fd1cb",
+ "metadata": {},
+ "source": [
+ "## Add STAC Collection to Catalog and Save"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "e2120a55-3d04-4122-a93f-29afcdb8cb1b",
+ "metadata": {
+ "tags": []
+ },
+ "outputs": [],
+ "source": [
+ "# # helper to find items of wrong type\n",
+ "# d = collection.to_dict()\n",
+ "# def find_paths(nested_dict, prepath=()):\n",
+ "# for k, v in nested_dict.items():\n",
+ "# try:\n",
+ "# path = prepath + (k,)\n",
+ "# if type(v) is np.float64: # found value\n",
+ "# yield path\n",
+ "# elif hasattr(v, 'items'): # v is a dict\n",
+ "# yield from find_paths(v, path) \n",
+ "# except:\n",
+ "# print(prepath)\n",
+ "\n",
+ "# print(*find_paths(d))"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "4b75791b-6b2d-40be-b7c6-330a60888fb5",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "if catalog.get_child(collection_id):\n",
+ " collection.normalize_and_save(root_href=os.path.join(catalog_path, collection_id), catalog_type=pystac.CatalogType.SELF_CONTAINED)\n",
+ "else:\n",
+ " catalog.add_child(collection)\n",
+ " catalog.normalize_and_save(root_href=catalog_path, catalog_type=pystac.CatalogType.SELF_CONTAINED)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "d6f676b5-e892-4bfb-8d73-2828addd838c",
+ "metadata": {},
+ "outputs": [],
+ "source": []
+ }
+ ],
+ "metadata": {
+ "kernelspec": {
+ "display_name": "global-global-pangeo",
+ "language": "python",
+ "name": "conda-env-global-global-pangeo-py"
+ },
+ "language_info": {
+ "codemirror_mode": {
+ "name": "ipython",
+ "version": 3
+ },
+ "file_extension": ".py",
+ "mimetype": "text/x-python",
+ "name": "python",
+ "nbconvert_exporter": "python",
+ "pygments_lexer": "ipython3",
+ "version": "3.11.6"
+ }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}