Network panel
Algae Dataset
Every data hub, dataset, sensor, variable, paper and limitation in one tree — and for each: where it comes from, how far back it goes, how often it captures, why it belongs in a cholera study, and why it does not work everywhere.
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Chakaria HDSS
Matlab HDSS
Dhaka City
Choosing a site greys out everything that does not apply there.
- +DATA HUBSwhere the data physically comes from
- +DATASET TYPESgrouped by what kind of water they see
- +SITE-WISEwhat actually applies at each site
- +DURATION & CAPTURE CADENCEdaily · weekly · 10-day · 16-day · monthly
- +VARIABLESwhat is computed from the bands
- −LIMITATIONSwhy not — typed and severity-ranked
- +VALIDATION2 limitations · 1 critical
- +ACCESS6 limitations · 4 critical
- −SPATIAL6 limitations · 3 critical
- ·4 km pixel cannot resolve any inland water bodyCRITICALdataset AL01
- ·250 m works on the Meghna and nowhere else in this studyCRITICALdataset AL16
- ·Matlab shapefile contains 43 polygons from another upazilaCRITICALsite level
- ·300 m needs water wider than about 600 mHIGHdataset AL04
- ·1 km lake mask is unlikely to include your water bodiesHIGHdataset AL10
- ·Chakaria boundary has no internal unitsHIGHsite level
- +TEMPORAL7 limitations · 2 critical
- +ALGORITHMIC3 limitations · 1 critical
- +COVERAGE6 limitations · 1 critical
- +ATMOSPHERIC1 limitations
- +SPECTRAL2 limitations
- +PAPERSthe evidence, DOI-linked
CRITICAL Matlab shapefile contains 43 polygons from another upazila spatial blocks Matlab
MATLAB_HDSS_AREA.shp holds 251 polygons across Matlab Uttar (112), Matlab Dakkhin (96) and Daudkandi (43). Daudkandi is in Cumilla district, outside the HDSS. 42 of those 43 sit in Block E, so extracting without filtering leaves Block E 56 percent contaminated with no matching population denominator.
What to do: Filter UPAZILA_NA != 'Daudkandi' - 208 polygons remain - and re-derive block membership. Block E falls from 75 polygons to 33. Upload the filtered file as the Earth Engine asset.