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maning / open-hazards-ph

Archiving publicly available hazards geospatial data created by various agencies in the Philippines.
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noah landslide vector maps cannot be read #16

Open ricsatjr opened 2 years ago

ricsatjr commented 2 years ago
  1. downloaded geojson.zip files from open-hazards-ph
  2. tried to open individual files using geopandas read_file (which can read zip files).
  3. some files successfully return a geodataframe, other files return an empty geodataframes.
  4. Tried opening the geojson files in QGIS 3.20, all files are loading in the layer panel, but some do not have features and attributes.
  5. Cases checked for both QGIS and geopandas: Catanduanes landslide vector file cannot be opened and read, whereas Camiguin can be successfully opened and read.

python code: for fname in glob.glob('*.zip'): try: gdf=gpd.read_file(fname)

    if len(gdf)==0:
        print("EMPTY FILE ",fname)
    else:
        print(len(gdf)," ",fname)
except:
    print("ERROR READ FILE ",fname)

sample output: EMPTY FILE AgusanDelNorte_LandslideHazards.shp.geojson.zip 3 Sulu_LandslideHazards.shp.geojson.zip EMPTY FILE Ifugao_LandslideHazards.shp.geojson.zip EMPTY FILE Capiz_LandslideHazards.shp.geojson.zip EMPTY FILE Zambales_LandslideHazards.shp.geojson.zip EMPTY FILE Samar_LandslideHazards.shp.geojson.zip EMPTY FILE Bukidnon_LandslideHazards.shp.geojson.zip EMPTY FILE Rizal_LandslideHazards.shp.geojson.zip 3 TawiTawi_LandslideHazards.shp.geojson.zip 3 MetroManila_LandslideHazards.shp.geojson.zip EMPTY FILE Sorsogon_LandslideHazards.shp.geojson.zip

ricsatjr commented 2 years ago

It seems to me that the file structures are not uniform. From the files that I have tried to work on successfully, there are 3 features corresponding to the 3 levels of landslide susceptibilities (I have verified this with the Camiguin data). But look at other files that have been read successfully (output of code posted above):

3 TawiTawi_LandslideHazards.shp.geojson.zip 3 MetroManila_LandslideHazards.shp.geojson.zip 1 Bataan_LandslideHazards.shp.geojson.zip 52 MisamisOriental_LandslideHazards.shp.geojson.zip 2 Romblon_LandslideHazards.shp.geojson.zip

ricsatjr commented 2 years ago

complete output of the code posted above:

EMPTY FILE AgusanDelNorte_LandslideHazards.shp.geojson.zip 3 Sulu_LandslideHazards.shp.geojson.zip EMPTY FILE Ifugao_LandslideHazards.shp.geojson.zip EMPTY FILE Capiz_LandslideHazards.shp.geojson.zip EMPTY FILE Zambales_LandslideHazards.shp.geojson.zip EMPTY FILE Samar_LandslideHazards.shp.geojson.zip EMPTY FILE Bukidnon_LandslideHazards.shp.geojson.zip EMPTY FILE Rizal_LandslideHazards.shp.geojson.zip 3 TawiTawi_LandslideHazards.shp.geojson.zip 3 MetroManila_LandslideHazards.shp.geojson.zip EMPTY FILE Sorsogon_LandslideHazards.shp.geojson.zip EMPTY FILE Bulacan_LandslideHazards.shp.geojson.zip 1 Bataan_LandslideHazards.shp.geojson.zip 52 MisamisOriental_LandslideHazards.shp.geojson.zip 2 Romblon_LandslideHazards.shp.geojson.zip EMPTY FILE AgusanDelSur_LandslideHazards.shp.geojson.zip EMPTY FILE DavaoOriental_LandslideHazards.shp.geojson.zip EMPTY FILE OccidentalMindoro_LandslideHazards.shp.geojson.zip EMPTY FILE DavaoOccidental_LandslideHazards.shp.geojson.zip EMPTY FILE Quirino_LandslideHazards.shp.geojson.zip EMPTY FILE Cebu_LandslideHazards.shp.geojson.zip 1 Masbate_LandslideHazards.shp.geojson.zip EMPTY FILE Cagayan_LandslideHazards.shp.geojson.zip 1 Aurora_LandslideHazards.shp.geojson.zip EMPTY FILE NuevaVizcaya_LandslideHazards.shp.geojson.zip 3 Basilan_LandslideHazards.shp.geojson.zip EMPTY FILE MountainProvince_LandslideHazards.shp.geojson.zip EMPTY FILE IlocosSur_LandslideHazards.shp.geojson.zip EMPTY FILE Laguna_LandslideHazards.shp.geojson.zip EMPTY FILE Iloilo_LandslideHazards.shp.geojson.zip EMPTY FILE SultanKudarat_LandslideHazards.shp.geojson.zip EMPTY FILE Guimaras_LandslideHazards.shp.geojson.zip EMPTY FILE Cotabato_LandslideHazards.shp.geojson.zip EMPTY FILE ZamboangaDelNorte_LandslideHazards.shp.geojson.zip EMPTY FILE DinagatIslands_LandslideHazards.shp.geojson.zip 85 LaUnion_LandslideHazards.shp.geojson.zip EMPTY FILE OrientalMindoro_LandslideHazards.shp.geojson.zip 11 Pangasinan_LandslideHazards.shp.geojson.zip EMPTY FILE NorthernSamar_LandslideHazards.shp.geojson.zip EMPTY FILE Quezon_LandslideHazards.shp.geojson.zip EMPTY FILE CompostelaValley_LandslideHazards.shp.geojson.zip EMPTY FILE IlocosNorte_LandslideHazards.shp.geojson.zip 3 Siquijor_LandslideHazards.shp.geojson.zip EMPTY FILE Apayao_LandslideHazards.shp.geojson.zip EMPTY FILE LanaoDelSur_LandslideHazards.shp.geojson.zip EMPTY FILE LanaoDelNorte_LandslideHazards.shp.geojson.zip 7 Kalinga_LandslideHazards.shp.geojson.zip EMPTY FILE NuevaEcija_LandslideHazards.shp.geojson.zip EMPTY FILE ZamboangaSibugay_LandslideHazards.shp.geojson.zip EMPTY FILE Benguet_LandslideHazards.shp.geojson.zip 1 Batangas_LandslideHazards.shp.geojson.zip 2 MisamisOccidental_LandslideHazards.shp.geojson.zip 11 SurigaoDelNorte_LandslideHazards.shp.geojson.zip EMPTY FILE DavaoDelSur_LandslideHazards.shp.geojson.zip EMPTY FILE SouthCotabato_LandslideHazards.shp.geojson.zip EMPTY FILE CamarinesNorte_LandslideHazards.shp.geojson.zip EMPTY FILE Cavite_LandslideHazards.shp.geojson.zip EMPTY FILE Aklan_LandslideHazards.shp.geojson.zip EMPTY FILE NegrosOccidental_LandslideHazards.shp.geojson.zip EMPTY FILE Tarlac_LandslideHazards_IMWTG.shp.geojson.zip 1 Albay_LandslideHazards.shp.geojson.zip EMPTY FILE SurigaoDelSur_LandslideHazards.shp.geojson.zip 3 Camiguin_LandslideHazards.shp.geojson.zip EMPTY FILE EasternSamar_LandslideHazards.shp.geojson.zip EMPTY FILE Sarangani_LandslideHazards.shp.geojson.zip EMPTY FILE Maguindanao_LandslideHazards.shp.geojson.zip EMPTY FILE Catanduanes_LandslideHazards.shp.geojson.zip 3 Pampanga_LandslideHazards.shp.geojson.zip 1 Marinduque_LandslideHazards.shp.geojson.zip EMPTY FILE DavaoDelNorte_LandslideHazards.shp.geojson.zip 3 Batanes_LandslideHazards.shp.geojson.zip 1 Isabela_LandslideHazards_IMWTG_Undissolved.shp.geojson.zip EMPTY FILE CamarinesSur_LandslideHazards.shp.geojson.zip EMPTY FILE Antique_LandslideHazards.shp.geojson.zip EMPTY FILE ZamboangaDelSur_LandslideHazards.shp.geojson.zip EMPTY FILE NegrosOriental_LandslideHazards.shp.geojson.zip 1 Palawan_LandslideHazards.shp.geojson.zip EMPTY FILE SouthernLeyte_LandslideHazards.shp.geojson.zip EMPTY FILE Bohol_LandslideHazards.shp.geojson.zip 5 Biliran_LandslideHazards.shp.geojson.zip EMPTY FILE Leyte_LandslideHazards.shp.geojson.zip

ricsatjr commented 2 years ago

confirming similar results when directly reading the extracted geojson files:

3 Pampanga_LandslideHazards.shp.geojson EMPTY FILE Guimaras_LandslideHazards.shp.geojson 5 Biliran_LandslideHazards.shp.geojson 3 Camiguin_LandslideHazards.shp.geojson EMPTY FILE Catanduanes_LandslideHazards.shp.geojson EMPTY FILE Benguet_LandslideHazards.shp.geojson 3 Siquijor_LandslideHazards.shp.geojson