Extract EO metadata from the catalogue


#1

When using opensearch-client the user can specify a “property key”, one of the property keywords defined in the data model. In this case we are using the Earth Observation profile (EOP) model. opensearch-client allows the user to discover the keywords of the data model as the following query shows:

opensearch-client -m <datamodel_name>

For the EOP data model we have:

opensearch-client -m EOP

Resulting in:

Data model: EOP
===============
Data model to handle Earth Observation dataset according to OGC® OpenSearch Extension for Earth Observation OGC 13 026

Metadata Id              Metadata capability                     
===========          ===================                     
wkt                           Well Know Text geometry                 
title                         Title of the item (string)              
enclosure                     Link to related resource that is potentially large in size and might 
                                    require special handling (RFC 4287). This metadata takes into 
                                    account the following data model parameters: enclosure:scheme, 
                                   enclosure:host
identifier                    Identifier name of the dataset within the collection
startdate                     Start time of the dataset (UTC ISO 8601)
enddate                       Start time of the dataset (UTC ISO 8601)
published                     Publication date of the item            
updated                       Updated date of the item                
related                       Link to resource related to the resource described by the containing 
                                  element. For example, slaves feed in an correlated search. This 
                                 metadata takes into account the following data model parameters: 
                                 related:title, related:type
self                          Link to resource that identifies a resource equivalent to the containing 
                               element (RFC 4287).
productType               A string identifying the entry type (e.g. GRD, SLC)
parentIdentifier           A string identifying the parent of the entry in a hierarchy of resources 
                                      (e.g. ER02_SAR_IM__0P, MER_RR__1P, SM_SLC__1S, 
                                       GES_DISC_AIRH3STD_V005)
orbitNumber               A number reprensenting the acquisition orbit
orbitDirection              A string identifying the acquisition orbit direction. Possible values are: 
                                   ASCENDING, DESCENDING
track                           A number representing the acquisition orbit track
frame                         A number representing the acquisition orbit track
swathIdentifier           A string representing the acquisition swath identifier
platform                      A string identifying the acquisition platform shortname.
operationalMode         A string representing the acquisition sensor operational mode
polarisationChannels   A string representing the acquisition polarisation channels
wrsLongitudeGrid        A string representing the acquisition Wrs Longitude Grid
processingLevel          A number representing the metadata processing level

To display the metadata, simply specify them separated by commas at then end of the query command.

opensearch-client https://catalog.terradue.com/sentinel1/series/insar/search identifier,orbitNumber,wkt

resulting in

S1B_WV_SLC__1SSV_20170216T171529_20170216T172109_004328_007842_669A,4328,POLYGON((177.976974 -49.000618,177.698898 -48.941673,177.782043 -48.767326,178.059052 -48.826073,177.976974 -49.000618)) S1A_IW_SLC__1SDV_20170216T172013_20170216T172041_015312_019199_BD9C,15312,POLYGON((-0.580221 66.102768,5.148673 66.587906,5.806478 64.927299,0.425499 64.459267,-0.580221 66.102768)) S1A_IW_SLC__1SDV_20170216T171808_20170216T171836_015312_019199_C90D,15312,POLYGON((3.284597 58.71159,7.74213 59.140038,8.226113 57.474209,3.973016 57.052986,3.284597 58.71159)) S1B_WV_SLC__1SSV_20170216T164712_20170216T171224_004328_007841_E541,4328,POLYGON((-154.965744 52.961605,-155.269073 53.002445,-155.202606 53.179874,-154.897964 53.138939,-154.965744 52.961605)) S1A_IW_SLC__1SDV_20170216T170644_20170216T170714_015312_019198_114E,15312,POLYGON((14.262589 17.746746,16.596031 18.17522,16.946032 16.376869,14.635988 15.944271,14.262589 17.746746)) S1A_IW_SLC__1SDV_20170216T165459_20170216T165525_015311_019196_8F99,15311,POLYGON((23.846333 -25.033327,26.268923 -24.457964,26.728317 -26.014868,24.272566 -26.599501,23.846333 -25.033327)) S1A_IW_SLC__1SDV_20170216T165434_20170216T165501_015311_019196_941F,15311,POLYGON((24.240562 -26.471489,26.692194 -25.887897,27.179779 -27.492859,24.691404 -28.086462,24.240562 -26.471489)) S1A_IW_SLC__1SDV_20170216T165410_20170216T165437_015311_019196_7845,15311,POLYGON((24.654928 -27.959265,27.140501 -27.36643,27.642712 -28.969154,25.11768 -29.572489,24.654928 -27.959265)) S1A_IW_SLC__1SDV_20170216T165345_20170216T165412_015311_019196_2B99,15311,POLYGON((25.085667 -29.444305,27.60536 -28.842241,28.123451 -30.442801,25.561502 -31.055887,25.085667 -29.444305)) S1A_IW_SLC__1SDV_20170216T165320_20170216T165347_015311_019196_59D2,15311,POLYGON((25.523119 -30.929066,28.081778 -30.316839,28.616901 -31.914957,26.013002 -32.538784,25.523119 -30.929066)) S1A_IW_SLC__1SDV_20170216T165254_20170216T165322_015311_019196_8E58,15311,POLYGON((25.951769 -32.417091,28.561638 -31.792301,29.134596 -33.443424,26.474337 -34.08091,25.951769 -32.417091)) S1A_IW_SLC__1SDV_20170216T165227_20170216T165256_015311_019196_5B9D,15311,POLYGON((26.425968 -33.947586,29.084391 -33.310692,29.721241 -35.074448,27.00485 -35.725739,26.425968 -33.947586)) S1B_IW_SLC__1SSV_20170216T164625_20170216T164655_004328_007840_1847,4328,POLYGON((-155.998672 54.333458,-159.864746 54.734146,-159.371292 56.569134,-155.319 56.163021,-155.998672 54.333458)) S1B_IW_SLC__1SSV_20170216T164600_20170216T164627_004328_007840_3EA6,4328,POLYGON((-155.369156 56.034779,-159.407288 56.440395,-158.954147 58.051842,-154.73555 57.64035,-155.369156 56.034779)) S1B_IW_SLC__1SSV_20170216T164535_20170216T164602_004328_007840_F5B5,4328,POLYGON((-154.805267 57.514057,-159.001465 57.923828,-158.527847 59.533787,-154.133652 59.117004,-154.805267 57.514057)) S1B_IW_SLC__1SSV_20170216T164510_20170216T164537_004328_007840_0C1B,4328,POLYGON((-154.179428 58.988037,-158.560974 59.404858,-158.062759 61.013382,-153.462662 60.588165,-154.179428 58.988037)) S1B_IW_SLC__1SSV_20170216T164444_20170216T164512_004328_007840_EA61,4328,POLYGON((-153.542435 60.462627,-158.115707 60.885735,-157.57019 62.550552,-152.746185 62.11713,-153.542435 60.462627)) S1B_IW_SLC__1SSV_20170216T164420_20170216T164447_004328_007840_FB1D,4328,POLYGON((-152.788025 61.988075,-157.600616 62.422073,-157.039139 64.027679,-151.956345 63.581768,-152.788025 61.988075)) S1B_IW_SLC__1SSV_20170216T164355_20170216T164422_004328_007840_E9EA,4328,POLYGON((-152.02507 63.455189,-157.085205 63.900074,-156.48381 65.504311,-151.121735 65.045326,-152.02507 63.455189)) S1B_IW_SLC__1SSV_20170216T164330_20170216T164357_004328_007840_1C5D,4328,POLYGON((-151.202332 64.919907,-156.536713 65.377296,-155.887909 66.979897,-150.214508 66.505821,-151.202332 64.919907))


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