add catalog json

.gitignore

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+.DS_Store

catalog.json

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+{
+    "stac_version": "1.1.0",
+    "id": "NOAA PolarWatch Polar Data Catalog",
+    "type": "Catalog",
+    "description": "NOAA PolarWatch Test catalog",
+    "links": [
+        {
+            "rel": "child",
+            "href": "datasets/nesdis_blendedsic_nhem_daily.json",
+            "title": "X-Experimental: Sea Ice Concentration, AMSR2/VIIRS, Arctic, 1km, Blended, UW-CIMSS, 2023-present, Daily"
+        },
+        {
+            "rel": "child",
+            "href": "datasets/ncei_polarAPPX20_nhem.json",
+            "title": "Sea Ice Thickness and Multi-variable Extended AVHRR Polar Pathfinder APP-X NCEI Climate Data Record V2, Arctic, 1982-Present, Twice Daily"
+        },
+        {
+            "rel": "child",
+            "href": "datasets/nsidcG02202v4nh1day.json",
+            "title": "Sea Ice Concentration, NOAA/NSIDC Climate Data Record V4, Northern Hemisphere, 25km, Science Quality, 1978-Present, Daily"
+        }
+    ]
+}

datasets/ncei_polarAPPX20_nhem.json

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+{
+    "stac_version": "1.0.0",
+    "id": "ncei_polarAPPX20_nhem",
+    "type": "Collection",
+    "title": "Sea Ice Thickness and Multi-variable Extended AVHRR Polar Pathfinder APP-X NCEI Climate Data Record V2, Arctic, 1982-Present, Twice Daily",
+    "description": "This data archive contains quality controlled data from BGC-Argo floats deployed by the Southern Ocean Carbon and Climate Observation and Modeling (SOCCOM) and  Global Ocean Biogeochemistry Array (GO-BGC) projects. Data for all floats within this archive were processed by the float data management team at the Monterey Bay Aquarium Research Institute (MBARI). This dataset contains the latest available snapshot archive. Each snapshot archive is assigned a unique DOI, and is hosted on the SOCCOM UCSD library digital collection. All snapshot archives of this dataset are available through the full GO-BGC and SOCCOM joint UCSD library digital collection at https://library.ucsd.edu/dc/collection/bb0488375t. See the DOI and history attibutes for specific references for this snapshot. Float specific metadata, as well as raw and QC files from the near-real time dataset are available at https://www3.mbari.org/lobo/Data/FloatVizData/ (navigate to the /QC/ subfolder for quality controlled files). BGCArgo formatted netCDF files for the SOCCOM array are also available on the Argo GDAC (https://usgodae.org/pub/outgoing/argo/dac/aoml/). NOTE: While delayed-mode quality control (and data adjustments based on comparisons to reference fields) is assessed across the array prior to the generation of each snapshot archive, all data is PROVIDED AS-IS. Be aware that INACCURACIES MAY BE PRESENT within the data. SOCCOM data managers do their best to provide high-quality, complete data but make no guarantees as to the presence of errors within the data itself or the algorithms used in the generation of derived carbon parameters. It is the USER'S RESPONSIBILITY to ensure that the data meets the user's needs. ",
+    "extent": {
+        "spatial": {
+            "bbox": [
+                [
+                    -180.0,
+                    0.0,
+                    180.0,
+                    90.0
+                ]
+            ]
+        },
+        "temporal": {
+            "interval": [
+                [
+                    "1982-01-01T12:00:00Z",
+                    null
+                ]
+            ]
+        }
+    },
+    "links": [
+        {
+            "rel": "self",
+            "href": "stac_catalog/datasets/ncei_polarAPPX20_nhem.json"
+        },
+        {
+            "rel": "root",
+            "href": "../catalog.json"
+        },
+        {
+            "rel": "data",
+            "href": "https://polarwatch.noaa.gov/erddap/info/ncei_polarAPPX20_nhem/index.html",
+            "type": "text/html"
+        }
+    ],
+    "license": "CC-BY-1.0",
+    "keywords": [
+        "EARTH SCIENCE",
+        "CRYOSPHERE",
+        "SEA ICE",
+        "SEA ICE CONCENTRATION",
+        "EARTH SCIENCE",
+        "BLENDED PRODUCT",
+        "AMSR2",
+        "VIIRS"
+    ],
+    "providers": [
+        {
+            "name": "NOAA/NMFS/SWFSC/ERD and NOAA/NESDIS/CoastWatch West Coast Node",
+            "roles": [
+                "creator"
+            ],
+            "url": "stratus.ssec.wisc.edu"
+        },
+        {
+            "name": "NOAA NESDIS",
+            "roles": [
+                "institution"
+            ]
+        }
+    ],
+    "proj:code": "EPSG:3408"
+}

datasets/nesdis_blendedsic_nhem_daily.json

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+{
+    "stac_version": "1.0.0",
+    "id": "nesdis_blendedsic_nhem_daily",
+    "type": "Collection",
+    "title": "X-Experimental: Sea Ice Concentration, AMSR2/VIIRS, Arctic, 1km, Blended, UW-CIMSS, 2023-present, Daily",
+    "description": "This is a Blended Sea Ice Concentration product that combines clear-sky Visible and Infrared Imager/Radiometer Suite (VIIRS) ice concentration from NOAA-20 with that comes from the AMSR2 NASA Team-2 10 km product. The output is remapped into 1-km EASE2 grid cells with a nominal resolution of at least 5-km. The NDE cloud mask is used to screen out cloudy VIIRS pixels. When the cloud mask for a data point is determined to be confidently clear, the output concentration in the blended product is 100% VIIRS. Otherwise, the Best Linear Unbiased Estimator equation is used to determine the output concentration (see https://www.sciencedirect.com/topics/mathematics/linear-unbiased-estimator#:~:text=Under%20assumptions%20V%20and%20VI,(Gauss%E2%80%93Markov%20theorem for more information on method).",
+    "extent": {
+        "spatial": {
+            "bbox": [
+                [
+                    -180.0,
+                    30.0,
+                    180.0,
+                    90.0
+                ]
+            ]
+        },
+        "temporal": {
+            "interval": [
+                [
+                    "1950-01-01T12:00:00Z",
+                    null
+                ]
+            ]
+        }
+    },
+    "links": [
+        {
+            "rel": "self",
+            "href": "stac_catalog/datasets/nesdis_blendedsic_nhem_daily.json"
+        },
+        {
+            "rel": "root",
+            "href": "../catalog.json"
+        },
+        {
+            "rel": "data",
+            "href": "https://polarwatch.noaa.gov/erddap/info/nesdis_blendedsic_nhem_daily/index.html",
+            "type": "text/html"
+        }
+    ],
+    "license": "These data may be redistributed and used without restriction.",
+    "keywords": [
+        "EARTH SCIENCE",
+        "CRYOSPHERE",
+        "SEA ICE",
+        "SEA ICE CONCENTRATION",
+        "EARTH SCIENCE",
+        "BLENDED PRODUCT",
+        "AMSR2",
+        "VIIRS"
+    ],
+    "providers": [
+        {
+            "name": "NOAA NESDIS, UW",
+            "roles": [
+                "creator"
+            ],
+            "url": "stratus.ssec.wisc.edu"
+        },
+        {
+            "name": "Cooperative Institute for Meteorological Studies, University of Wisconsin at Madison",
+            "roles": [
+                "institution"
+            ]
+        }
+    ],
+    "proj:proj4": "+proj=laea +lat_0=90 +lon_0=0 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs +type=crs",
+    "proj:code": "EPSG:6931",
+    "proj:wkt2": "PROJCS[\"NSIDC Sea Ice Polar Stereographic North\",GEOGCS[\"Unspecified datum based upon the Hughes 1980 ellipsoid\",DATUM[\"Not_specified_based_on_Hughes_1980_ellipsoid\",SPHEROID[\"Hughes 1980\",6378273,298.279411123061,AUTHORITY[\"EPSG\",\"7058\"]],AUTHORITY[\"EPSG\",\"6054\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.01745329251994328,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4054\"]],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],PROJECTION[\"Polar_Stereographic\"],PARAMETER[\"latitude_of_origin\",70],PARAMETER[\"central_meridian\",-45],PARAMETER[\"scale_factor\",1],PARAMETER[\"false_easting\",0],PARAMETER[\"false_northing\",0],AUTHORITY[\"EPSG\",\"3411\"],AXIS[\"X\",UNKNOWN],AXIS[\"Y\",UNKNOWN]]"
+}

datasets/nsidcG02202v4nh1day.json

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+{
+    "stac_version": "1.0.0",
+    "id": "nsidcG02202v4nh1day",
+    "type": "Collection",
+    "title": "Sea Ice Concentration, NOAA/NSIDC Climate Data Record V4, Northern Hemisphere, 25km, Science Quality, 1978-Present, Daily",
+    "description": "This data set provides a passive microwave sea ice concentration climate data record (CDR) based on gridded brightness temperatures (TBs) from the Defense Meteorological Satellite Program (DMSP) series of passive microwave radiometers: the Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR), the Special Sensor Microwave Imager (SSM/I) and the Special Sensor Microwave Imager/Sounder (SSMIS). The sea ice concentration CDR is an estimate of sea ice concentration that is produced by combining concentration estimates from two algorithms developed at the NASA Goddard Space Flight Center (GSFC): the NASA Team algorithm and the Bootstrap algorithm. The individual algorithms are used to process and combine brightness temperature data at National Snow and Ice Data Center (NSIDC). This product is designed to provide a consistent time series of sea ice concentrations (the fraction, or percentage, of ocean area covered by sea ice) from November 1978 to the present which spans the coverage of several passive microwave instruments. The data are gridded on the NSIDC polar stereographic grid with 25 x 25 km grid cells, and are available in Network Common Data Format (NetCDF) file format. Each file contains a variable with the CDR concentration values as well as variables that hold the NASA Team and Bootstrap processed concentrations for reference Variables containing standard deviation, quality flags, and projection information are also included. Data are available from NSIDC via FTP see https://nsidc.org/data/G02202/versions/4/. Data are also distributed via the PolarWatch ERDDAP at https://polarwatch.noaa.gov/erddap. Note that the data format available through PolarWatch is different from the NSIDC FTP NetCDF files. The PolarWatch data server stores projection information as global attributes (with the prefix grid_mapping) instead of as a variable; and the timestamp is served in different units (seconds since 1970).",
+    "extent": {
+        "spatial": {
+            "bbox": [
+                [
+                    -180.0,
+                    60.0,
+                    180.0,
+                    90.0
+                ]
+            ]
+        },
+        "temporal": {
+            "interval": [
+                [
+                    "1978-10-25T12:00:00Z",
+                    null
+                ]
+            ]
+        }
+    },
+    "links": [
+        {
+            "rel": "self",
+            "href": "stac_catalog/datasets/nsidcG02202v4nh1day.json"
+        },
+        {
+            "rel": "root",
+            "href": "../catalog.json"
+        },
+        {
+            "rel": "alternate",
+            "title": "Data on ERDDAP",
+            "href": "https://polarwatch.noaa.gov/erddap/info/nsidcG02202v4nh1day/index.html",
+            "type": "text/html"
+        }
+    ],
+    "license": null,
+    "keywords": [
+        "EARTH SCIENCE",
+        "CRYOSPHERE",
+        "SEA ICE",
+        "SEA ICE CONCENTRATION",
+        "EARTH SCIENCE",
+        "BLENDED PRODUCT",
+        "AMSR2",
+        "VIIRS"
+    ],
+    "providers": [
+        {
+            "name": "NSIDC",
+            "roles": [
+                "creator"
+            ],
+            "url": "https://nsidc.org/"
+        },
+        {
+            "name": null,
+            "roles": [
+                "institution"
+            ]
+        }
+    ],
+    "proj:proj4": "+proj=stere +lat_0=90 +lat_ts=70 +lon_0=-45 +k=1 +x_0=0 +y_0=0 +a=6378273 +b=6356889.449 +units=m +no_defs",
+    "proj:code": "urn:ogc:def:crs:EPSG::3411",
+    "proj:wkt2": "PROJCS[\"NSIDC Sea Ice Polar Stereographic North\",GEOGCS[\"Unspecified datum based upon the Hughes 1980 ellipsoid\",DATUM[\"Not_specified_based_on_Hughes_1980_ellipsoid\",SPHEROID[\"Hughes 1980\",6378273,298.279411123061,AUTHORITY[\"EPSG\",\"7058\"]],AUTHORITY[\"EPSG\",\"6054\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.01745329251994328,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4054\"]],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],PROJECTION[\"Polar_Stereographic\"],PARAMETER[\"latitude_of_origin\",70],PARAMETER[\"central_meridian\",-45],PARAMETER[\"scale_factor\",1],PARAMETER[\"false_easting\",0],PARAMETER[\"false_northing\",0],AUTHORITY[\"EPSG\",\"3411\"],AXIS[\"X\",UNKNOWN],AXIS[\"Y\",UNKNOWN]]"
+}