Data & Resources — DSD Research Firm

📝 How to add datasets and resources (Sublime Text):
• New dataset: Copy … block, paste at top of correct section, update all fields and data-category / data-access attributes.
• New resource: Copy … block, paste in the .resources-grid.
• Access types: data-access="paid" → gold "Purchase" button · data-access="free" → green "Download" · data-access="request" → grey "Request Access"
• Category colours: primary=teal · reanalysis=blue · climatic=amber · historic=violet · remote=green · lab=rose
• Hide this note before going live: add display:none to .editor-note.

Data Access Process

How to Purchase or Access Data

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Browse & Select

Find the dataset you need. Review the metadata, coverage, resolution, and format details carefully.

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Submit Request

Click "Purchase" or "Request Access". Fill in the form with your name, institution, intended use, and publication plans.

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Review & Agreement

DSD reviews your request within 48 hours. Paid datasets require payment via bKash / bank transfer. A Data Use Agreement is issued.

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Receive Data

Data is delivered securely via Google Drive or email within 48 hours of confirmed payment and agreement signing.

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Cite Correctly

All datasets must be cited in any publication. A ready-to-use citation string is provided with every dataset delivery.

🌿 Primary Field Data 3 datasets

Original datasets collected directly by DSD Research Firm field teams using standardised protocols. These datasets have never been published elsewhere and are only available through DSD.

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💰 Paid

Primary Field Data

Bay of Bengal Coastal Microplastic Dataset — Chittagong (2022–2023)

Microplastic abundance, morphotype, colour, and FTIR polymer identification data from 144 sediment samples across 12 coastal stations. Collected across two seasons (pre-monsoon & post-monsoon). Includes GPS coordinates, site photos, and chain-of-custody records.

Coverage

Chittagong coast · 12 stations

Period

2022 – 2023

Records

144 samples · 18 variables

Resolution

Station-level (GPS)

.xlsx.csv.shp (GPS)PDF report

📜 DSD Non-Commercial Research License · Citation required

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💰 Paid

Primary Field Data

Sangu River Water Quality & Heavy Metals Dataset (2022–2024)

Multi-parameter water quality and heavy metal concentration data from 20 stations along the Sangu River. Four seasonal sampling campaigns. Parameters include pH, DO, BOD, COD, turbidity, conductivity, temperature, Pb, Cd, As, Cr, Hg, and biological indicators.

Coverage

Sangu River · 20 stations

Period

2022 – 2024 · 4 seasons

Records

80 samples · 24 variables

Resolution

Station-level · Seasonal

.xlsx.csv.sav (SPSS).shp

📜 DSD Non-Commercial Research License · Citation required

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💰 Paid

Primary Field Data

Estuarine Plankton Community Dataset — Karnaphuli & Meghna (2021–2022)

Species-level phytoplankton and zooplankton abundance and diversity data from four seasonal surveys at the Karnaphuli and Meghna estuaries. Includes co-measured physicochemical parameters, microscope identification records, and diversity index calculations.

Coverage

Karnaphuli + Meghna estuaries

Period

2021 – 2022 · 4 seasons

Records

87 taxa · 320 observations

Resolution

Station-level · Species-level

.xlsx.csv.sav (SPSS)

📜 DSD Non-Commercial Research License · Citation required

🔄 Reanalysis & Processed Data 2 datasets

Derived and value-added datasets produced by DSD through reprocessing, quality control, and spatial interpolation of raw environmental data from multiple sources.

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💰 Paid

Reanalysis / GIS Processed

Coastal Bangladesh LULC Classification Shapefiles (2000–2024)

Reanalysed and validated land use / land cover classification layers for coastal Bangladesh at four time points (2000, 2010, 2018, 2024) produced from Landsat 5/7/8/9 and Sentinel-2 imagery. Overall accuracy 92.4%. Includes confusion matrix and accuracy assessment report.

Coverage

Coastal Bangladesh (12 districts)

Time Points

2000 · 2010 · 2018 · 2024

Resolution

30m (Landsat) / 10m (Sentinel)

Accuracy

92.4% · Kappa 0.89

.shp.geojson.tif (GeoTIFF)PDF accuracy report

📜 DSD Non-Commercial Research License · Citation required

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💰 Paid

Reanalysis / Interpolated

Reanalysed Heavy Metal Contamination Surface — Agricultural Bangladesh (2021)

Spatially interpolated (kriging) heavy metal concentration surfaces (Pb, Cd, As, Cr) for agricultural areas of Gazipur, Narayanganj, and Chittagong industrial belts. Includes contamination index rasters, risk classification maps, and original point data.

Coverage

Gazipur · Narayanganj · Chittagong

Period

2020 – 2021

Resolution

100m kriging interpolation

Metals

Pb · Cd · As · Cr · Hg

.tif.shp.xlsx (point data)

📜 DSD Non-Commercial Research License · Citation required

🌡️ Climatological Data 2 datasets

Long-term climate and oceanographic data products compiled and quality-controlled by DSD from field measurements, station records, and gridded reanalysis sources.

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💰 Paid

Climatological Data

Bay of Bengal Sea Surface Temperature & Salinity Climatology (2000–2023)

Monthly and seasonal climatological means for sea surface temperature (SST) and surface salinity across the northern Bay of Bengal. Compiled from Argo float data, MODIS SST, and ship-of-opportunity records. Quality-controlled and bias-corrected by DSD.

Coverage

Northern Bay of Bengal

Period

2000 – 2023 · Monthly

Resolution

0.25° × 0.25° grid

Variables

SST · SSS · Mixed layer depth

.nc (NetCDF).csv.xlsx (climatological means)

📜 DSD Research License · Attribution required in publications

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💰 Paid

Climatological Data

Bangladesh District-Level Rainfall & Temperature Climatology (1980–2023)

Compiled monthly and annual rainfall, maximum and minimum temperature climatologies at district level across Bangladesh. Derived from BMD station records, CHIRPS gridded rainfall, and ERA5 reanalysis. Includes trend analysis and anomaly time series per district.

Coverage

All 64 districts of Bangladesh

Period

1980 – 2023 · Monthly

Resolution

District-level + 5km grid

Variables

Rainfall · Tmax · Tmin · Anomaly

.xlsx.csv.nc.shp (district)

📜 DSD Research License · Attribution required in publications

📅 Historical Data 2 datasets

Digitised, quality-controlled, and standardised long-term historical environmental datasets compiled from archival records, government data, and legacy research programmes.

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💰 Paid

Historical Data

Bay of Bengal Shoreline Position Time Series (1972–2024)

Digitised shoreline positions at 5-year intervals along 480 km of the Bangladesh coast, derived from historical topographic maps, aerial photography, and multi-temporal satellite imagery. Includes DSAS-calculated net shoreline movement and end-point rates for 960 transects.

Coverage

480km Bangladesh coastline

Period

1972 – 2024 · 5-year intervals

Transects

960 transects @ 500m spacing

Method

DSAS · ArcGIS

.shp.geojson.xlsx (DSAS stats)

📜 DSD Research License · Citation required

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🔒 Request Access

Historical Data · Embargo

Bangladesh Major Flood Event Inundation Archive (1988–2022)

Digitised flood inundation extent polygons for all major Bangladesh flood events from 1988 to 2022, compiled from government SPARRSO records, newspaper archives, Landsat imagery, and MODIS flood detection. Includes event metadata, affected area statistics, and district-level impact records.

Coverage

All Bangladesh · National

Events

12 major flood events

Period

1988 · 1998 · 2004 · 2007 · 2017 · 2022

Status

⚠️ Under peer review embargo

.shp.geojson.xlsx (statistics)

⚠️ Embargo: Available after linked paper published — Est. Q3 2025

🛰️ Remote Sensing Datasets 2 datasets

Processed and classified satellite imagery products generated by the DSD GIS team — ready for use in research, reports, and publications.

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🔓 Free

Remote Sensing · Open Access

Bangladesh Seasonal NDVI Composite (2020–2023) — Free Download

Seasonal mean NDVI composites for Bangladesh at 10m resolution derived from Sentinel-2 imagery. Four seasons per year (2020–2023). Useful for vegetation monitoring, agricultural assessment, and land degradation studies. Freely available for academic use with attribution.

Coverage

All Bangladesh

Period

2020 – 2023 · 4 seasons/yr

Resolution

10m (Sentinel-2)

License

CC BY 4.0 (Attribution)

.tif (GeoTIFF).nc

🔓 Creative Commons Attribution 4.0 (CC BY 4.0) · Free for academic use

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💰 Paid

Remote Sensing · Classified

Bangladesh Mangrove Extent & Density Classification (2024)

High-accuracy mangrove extent, canopy density, and degradation classification for the Bangladesh Sundarbans and coastal mangrove patches. Produced using combined Sentinel-1 SAR and Sentinel-2 optical imagery. Validated with field GPS points (accuracy 94.1%).

Coverage

Sundarbans + coastal fringe

Year

2024 (January composite)

Resolution

10m · 3 density classes

Accuracy

94.1% · Kappa 0.91

.tif.shp.geojsonaccuracy report PDF

📜 DSD Research License · Citation required

🧪 Laboratory Analytical Data 1 dataset

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💰 Paid

Laboratory Analytical Data

Agricultural Soil Heavy Metal Analytical Dataset — ICP-OES Results (2020–2021)

Full ICP-OES/AAS analytical results for Pb, Cd, As, Cr, Hg, Cu, Zn, and Ni from 180 agricultural soil samples. Includes sample ID, GPS coordinates, depth, collection date, dry weight, digest method, instrument calibration data, QA/QC replicates, and certified reference material results.

Samples

180 samples · 30 sites

Metals

Pb · Cd · As · Cr · Hg · Cu · Zn · Ni

Method

ICP-OES + AAS · ISO standard

QA/QC

CRM results included

.xlsx.csvPDF lab report

📜 DSD Research License · Attribution required · No redistribution

📚 Knowledge Resources 6 resources

Standard Operating Procedures, technical guides, analysis templates, and research tools produced by the DSD team — available for free download or purchase.

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SOP

Standard Operating Procedure — Water Sampling (Surface & Groundwater)

DSD's field-tested SOP for surface water and groundwater collection, preservation, labelling, and chain-of-custody documentation following APHA and ISO protocols.

PDF · 24 pages v2.1 · 2024 Free 🔓 Download →

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SOP

Standard Operating Procedure — Coastal Sediment Sampling

Complete field protocol for intertidal and subtidal sediment collection using Ekman grab, core samplers, and hand sampling. Includes preservation, drying, and sub-sampling guidance.

PDF · 18 pages v1.3 · 2023 Free 🔓 Download →

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Tool

SPSS Analysis Template — Environmental Water Quality

Ready-to-use SPSS syntax file and data entry template for standard water quality analysis — descriptive stats, normality tests, ANOVA, correlation, and regression. Includes variable labels and value codes.

.sav · .sps · .xlsx Free 🔓 Download →

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Guide

QGIS Land Use Classification Guide for Bangladesh Researchers

Step-by-step manual for conducting supervised LULC classification in QGIS using Landsat and Sentinel-2 data. Covers preprocessing, classification, accuracy assessment, and map production. Includes Bangladesh-specific classification scheme.

PDF · 86 pages QGIS 3.x · 2024 BDT 800 💰 Purchase →

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Template

KoboToolbox Field Data Collection Forms — Environmental Sampling

Ready-to-deploy KoboToolbox form templates for water quality, soil, and biodiversity field surveys. Import directly into your KoboToolbox account. Includes GPS, photo capture, and chain-of-custody fields.

.xlsx (XLSForm) 3 form templates Free 🔓 Download →

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Report

State of the Coastal Environment — Bangladesh Baseline Assessment Report (2024)

DSD's comprehensive 2024 baseline assessment of coastal Bangladesh's environmental status — covering water quality, biodiversity, pollution levels, land use change, and climate vulnerability. 120 pages with maps, charts, and statistical tables.

PDF · 120 pages 2024 Edition BDT 1,500 💰 Purchase →

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Citation Requirement — All DSD Datasets

All datasets and resources obtained from DSD Research Firm must be properly cited in any publication, report, thesis, or presentation in which they are used. A ready-formatted citation string is provided with every dataset delivery. The standard citation format is:

DSD Research Firm. (Year). [Dataset Title] [Dataset]. Digital Solutions and Development Ltd., Dhaka, Bangladesh. https://www.dsd-l.com/researchfirm. [Accessed: Date]

Data Governance

Our Data Policy

DSD Research Firm follows internationally recognised data management standards including FAIR (Findable, Accessible, Interoperable, Reusable) principles.

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Findable

All datasets are described with complete metadata including temporal coverage, spatial extent, variables, formats, and collection methods — making them discoverable for researchers.

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Accessible

Open access datasets are freely available with registration. Paid datasets are available within 48 hours of confirmed agreement and payment. Embargo datasets are accessible upon publication of the linked paper.

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Interoperable

All datasets are provided in internationally standard formats (CSV, NetCDF, GeoTIFF, Shapefile, SPSS .sav) compatible with all major analysis software.

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Reusable

Every dataset is accompanied by a Data Use Agreement, full methodology documentation, quality control records, and a citation string — enabling confident reuse in new research.

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Confidentiality

Datasets are not redistributed to third parties. Purchasers receive a single-institution, single-publication licence. Commercial use requires a separate commercial licence — contact us.

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Data Use Agreement

All paid and embargoed datasets require a signed Data Use Agreement before delivery. This protects both the data creator and the user's intended publication.

Can't Find the Data You Need?

DSD Research Firm can collect, process, and deliver custom datasets tailored to your exact research requirements. Tell us your study area, variables, time period, and format — we'll prepare a quote within 48 hours.

Custom field data collection from any location in Bangladesh

Bespoke satellite image classification for your study area and time period

Data cleaning, standardisation, and format conversion services

Historical data digitisation from archival maps, reports, and records

Data analysis and visualisation as a complete deliverable

📋 Request Custom Data ✉️ Email Directly

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Research Data &Knowledge Resources

Research Data &
Knowledge Resources