Categories - Biosphere

Sub Categories

Topics

bioacoustics, fisheries, fish, species, biodiversity-informatics, wildlife, deforestation, marine-biology, biodiversity-data, gbif, wildfire, birds, ebird, traits, protected-areas, species-distribution-modelling, deforestation-risk, fisheries-management, forest-inventory, reforestation, birdsong, stock-synthesis, fisheries-stock-assessment, population-dynamics, forests, stock-assessment, forest, biogeography, acoustic-monitoring, las, phenology, wildfire-forecasting, animal-movement, dendrochronology, inaturalist, spocc, bioinformatics, camera-traps, movement-ecology, niche-modelling, taxize, nomenclature, assessment, darwin-core, landscape-connectivity, biodiversity-monitoring, vertnet, salmon, species-distribution-modeling, phenocam, bird-migration, biodiversity-standards, ecology-modelling, forest-monitoring, vegetation-dynamics, phylogeny, noaa-nsap, species-interactions, species-sensitivity-distribution, tree-rings, ecological-niche-modelling, marine-species, evolution, dendroecology, dynamic, laser-scanning, demography, flnro, globalfishingwatch, forest-management, megadetector, plankton, protected-planet, birdnet, animal, world, dwc, animals, tropical-forests, spatial-modelling, spatial-autocorrelation, roads, redd, niche-modeling, nature, insects, land-use-change, ipbes, forest-cover-change, biodiversity-scenario, clip, phylogenetic-diversity, life, obis, vegetation-period, trees, ssd, laz, als, transport-equation, size-structure, marine-ecosystem, transitions, sonar, ek80, ek60, echosounder, azfp, fishr-website, ecosystem-status-report, ais-data, ais, strandings, marine-wildlife-incidents, marine-turtles, conservation-bio, openfisheries, niche-overlap, gui-application, data-analysis-r, zero-shot-classification, rare-species, multimodal, plantcv, plant-phenotyping, water-quality-guideline, camtrap-dp, stream-network, national-phenology-network, jags, land-surface-phenology, mapme, detectron2, glmm, tmb, esri-js, gfw, tree-canopy, tree-detection, tree-pixels, diet, diseases, eol, fao-manual, fish-stocks, active-learning, tdwg, abundance, dynamics, fgeo, forestgeo, habitat, metapackage, annotation-tool, cameratraps, classifier-model, yolov5, fish-observations, fiss, exif, hierarchical-keywords, iptc, xmp, animal-acoustic-signals, spectrogram, streamline-analysis, bcws, cffdrs, biomass, fire-effects, amazonia, datazoom, municipality, fire, fish-population-dynamics, etl-framework, food-webs, globi, parasites, pollinators, ala-product-digivol, biological-data, jerico-relevant, conservation-prioritization, aspe, electrofishing, freshwater, sampling, wfd, geonature, geonature-citizen, shifts, points, indicators, critical, catastrophic, tidymodels, marine-traffics, marine-resources, impact-assessment, bio-economics, aquaculture, prz, cons-tech, epidemiology, ecosystem-simulation, rarefaction, ionic-framework, invasives, raspberrypi, htmx, help-wanted, first-issue, contributions-welcome, birdweather, birdnet-pi, audio, alpinejs, wildfires, model-fit-for-purpose, spatiotemporal-dynamics, spatio-temporal-analysis, ornithology, movement, bird-survey, adaptive-spatio-temporal-exploratory-model, shiny-r, greenness-exposure, partitioning-diversity, diversity-measurement, portal, ecological-niche-modeling, cumulative-impacts, verified-carbon-standard, jurisdictional-and-nested-redd, forest-conservation, fishbase, video-search, video-annotation, video-analytics, video-analysis, image-annotation, annotation-framework, forest-loss, compliance-check, openplantpathology, onnx, keypoint-detection, sound, cbm-cfs3, ensemble-modelling, pytorch-wildlife, earthenv, chelsa, bioclim, wsr-88d, nexrad, eumetnet-opera, enram, aeroecology, whales, realtime, orcas, inference, audio-analysis, shad, management-strategy-evaluation, individual-based, herring, fish-passage, dam, wlrs, sims, react-leaflet, openshift, object-store, material-ui, keycloak, biohub, satellites, journalism, firms, data-journalism, lter-science, national-science-foundation, meta-analysis, ecosystem-science, cyberinfrastructure, describe, collections, watering, citylab-berlin, public-health, offline-first, mobile-data-collection, household-surveys, field-survey, field-data-collection, spades, landscape-ecosystem-modelling, species-identification, tomcat, half-earth, arcgisjs, sst, aims, spatially-structured-validation, spatial-ecology, model-tuning, tropical-forest, hyperspectral-imaging, diversity-mapping, tree-mapping, wdpa, country-iso-code, plugins, interactive-visualization, desktop-application, species-turnover, randomisations, phylogeography, phylogenetic-trees, phylodiversity, endemism, biodiverse, beta-diversity, noaa-fisheries, groundfish, alaska, bats, ala-product-ala4r, ala, SimRoot, Root architecture, Plant biology, Nutrient uptake, birding, environmental-modeling, marine-protected-areas, biologging, animal-tracking, tunning, maxent-models, enmeval, knowledge-guided-machine-learning, imageomics, vocalizations, torchvision, speech-processing, spectrograms, bioacoustic-analysis, animal-vocalizations, animal-communication, natural-hazard, plant-physiology, maxent, global-fishing-watch, fishing-effort, fisheries-research, public-science, mantis-religiosa, mantis, gottesanbeterin, brandenburg, phenotypes, pedigree, germinate, genotypes, genetics, chemical-compounds, rbp, periphyton, metric, macorinvertebrates, biomonitoring, bioassessment, benthic, crowns, usda-nrcs, ssurgo, soil-quality-degradation, resource-assessment, ranking-tool, ranking, land-unit, intrinsic-soil-properties, conservation-practices, conservation-assessment-ranking, cart, octave, digital-forestry-toolbox, asprs, Functional Structural Plant model, vegetation-phenology, phenology-models, model-calibration, species-observed, sampling-effort, reported-species, data-gaps, avian, phenology-modelling, phenocam-data, specimen, hut23-240, species-occurrence, occurrence, idigbio, ecoengine, bison, antweb, spatial-predictions, spatial-grain, scenarios, poisson-process, integrated-framework, continuous-integration, carbon-capture-sequestration, plant-trees, plant-genetic-resources, estimator, entropy-partitioning, diversity, invasive-species, geospatial-processing, prefect, openlayers, fishing-vessels, fishing, picture, raspberry-pi-camera, raspberry-pi-4, planktoscope, microscopy, microscope-platform, microscope, imaging, citizen, sapwood, forest-disturbances, anomalies-detection, mechanistic-models, restoration, hmm, hidden-markov-model, pharo, multi-agent-systems, multi-agent-simulation, prioritization, conservation-planner, outbreak, disturbance, defoliators, budworm, terrestrial-ecosystem-modeling, soil-thermal-dynamics, permafrost-dynamics, fire-dynamics, carbon-cycling, boreal, spatial-graphs, habitat-connectivity, trillion-trees, mediterranean, iucn-red-list, iucn, sound-pressure-level, signal-processing, ecoacoustics, acoustic-indices, windspeed, tracker, pressure-sensor, migration, geolocator, datalogger, forest-variables, fia-datamart, fia-database, fia, compute-estimates, forestfire, rcpp, qsm, forest-analysis, caribou, solidity, smart-contracts, ipfs, greenpill, foundry, attestations, p-model, growth, dgvm, range-maps, botanical, bien, r-packages, dam-impact-analysis, forest-planning, fmt, canopy-height-models, shinyapps, indivisual-based-modeling, resolution, reconciliation, bdc, trait-based, functional-traits, functional-trait, functional-ecology, functional-diversity, biodiversity-indicators, behavior, acoustic-signals, trade, endangered-species, cites, color-palette, scattering, flr, fisheries-modelling, zoology, cnpq, lidar-point-cloud, rarity, ecological-models, surveillance, networks, space-time, inventories,

Projects

Contributors

Filipe Campelo [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Forest Modeling and Analysis, Forest Observation and Management
Topics:

sklesse [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Forest Modeling and Analysis, Forest Observation and Management
Topics:

David L. Woodruff [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics: mathematical-programming, modeling-language, nonlinear-programming

filippi_j [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Jean-Baptiste FILIPPI filippi_j@BRANDO-FRONT.(none)

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

damien damien@damien-VM.(none)

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

rbaggio [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Yiren Qin [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics: wildfire

ronan [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Frederic Allaire [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

jdurand [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Damien Grandi [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

lautenberger [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics: wildfire

yqin123 [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics: wildfire

Maria Theodori [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics: wildfire

Oliver-BE [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics: wildfire

ulises [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Cpaismz [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Kumar Vaibhav [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Jiamu Liu [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Julien-Gr4z [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Terrestrial Animals, Terrestrial Wildlife
Topics: biodiversity, camera, camera-traps, picture, traps, wildlife

Mathilde Leclerc [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Terrestrial Animals, Terrestrial Wildlife
Topics: biodiversity, camera, camera-traps, picture, traps, wildlife

Jaime Luna [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Lizzie Pearmain [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Conservation and Restoration
Topics:

Lizzie Pearmain [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Conservation and Restoration
Topics:

Martin [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Conservation and Restoration
Topics:

JCGiron [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Biodiversity Data Cleaning and Standardization, Biodiversity and Species Distribution
Topics: butterflies, insect-anatomy, insect-anatomy-ontologies, insect-ontology, lepidoptera-anatomy, moths, multispecies-anatomy-ontologies, obofoundry, ontology, ontology-development-kit and 10 more

Marianna Simoes [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Biodiversity Data Cleaning and Standardization, Biodiversity and Species Distribution
Topics:

Bealhammar [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Conservation and Restoration
Topics:

Steffen [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Conservation and Restoration
Topics: birds, jags, migration, multi-event, survival, telemetry, vultures

Virginia Morera-Pujol [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Conservation and Restoration
Topics:

Jonathan Handley [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Conservation and Restoration
Topics:

Jason Flower [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Conservation and Restoration
Topics:

Jason Flower [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Conservation and Restoration
Topics:

Echelle Burns [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Conservation and Restoration
Topics:

Alan Noble [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Marine Life and Fishery
Topics:

Trek H [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Marine Life and Fishery
Topics:

Scott Barnard [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Marine Life and Fishery
Topics: caffe, computervision, dnn, face-tracking, gocv, mjpeg, mjpeg-stream, object-classification, object-tracking, opencv and 2 more

George Silva [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Elsie L [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Sachi Yuan [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Hana Lee [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Jon Riecke [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Wendy Nie [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Tammy Woodard [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Conservation and Restoration, Deforestation and Reforestation
Topics: deforestation, geospatial-processing

Pablo Lopez [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

lastminutediorama [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Jon Riecke [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

elsiel23 [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Sachi Yuan [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Mac [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Pablo Lopez [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

cynthia huang [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Sterling Wells [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

janicejl [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Jessica Lee [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Maciek Smuga-Otto [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Xinya Yang [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Ankit Pandey [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Andrew Wang [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Jordan Combs [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

dschmidt-sig [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics:

Adam M. Wilson [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Conservation and Restoration
Topics:

Ivan Gabriele [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Marine Life and Fishery
Topics: d-bus, dbus, desktop, large-language-models, nvidia, remote-desktop, ubuntu, ubuntu-desktop, vnc, vnc-server and 6 more

Loup Theron [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Marine Life and Fishery
Topics: control, fishing, fishing-vessels, openlayers, prefect

Loup Theron [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Marine Life and Fishery
Topics: control, fishing, fishing-vessels, openlayers, prefect

Ivan Gabriele [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Marine Life and Fishery
Topics: control, fishing, fishing-vessels, openlayers, prefect

Vincent [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Marine Life and Fishery
Topics: control, fishing, fishing-vessels, openlayers, prefect

audrey bramy [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Marine Life and Fishery
Topics: control, fishing, fishing-vessels, openlayers, prefect

Thomas Brosset [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Marine Life and Fishery
Topics: control, fishing, fishing-vessels, openlayers, prefect

AudreyBramy [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Marine Life and Fishery
Topics: control, fishing, fishing-vessels, openlayers, prefect

Loup Théron [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Marine Life and Fishery
Topics: control, fishing, fishing-vessels, openlayers, prefect

louptheron [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Marine Life and Fishery
Topics: control, fishing, fishing-vessels, openlayers, prefect

Uriell Colas [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Marine Life and Fishery
Topics: control, fishing, fishing-vessels, openlayers, prefect

marlenerts [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Marine Life and Fishery
Topics: control, fishing, fishing-vessels, openlayers, prefect

Dmitry Dygalo [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Marine Life and Fishery
Topics: control, fishing, fishing-vessels, openlayers, prefect

fabienf [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Marine Life and Fishery
Topics: control, fishing, fishing-vessels, openlayers, prefect

Sarvesh Warge [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Conservation and Restoration, Deforestation and Reforestation
Topics: climate-change, plant, reforestation, trillion-trees, plant-trees, tree-planting

Sebastian Pardo [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Biodiversity and Species Distribution, Species Distribution Modeling
Topics: ecology, glmm, spatial-analysis, species-distribution-modelling, tmb, birds, ebird, ebird-api, ebird-webservices, spocc

djtfmartin [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Biodiversity Citizen Science, Biodiversity and Species Distribution
Topics: ala-product-digivol, biodiversity, ala-product-biocollect, ala-product-profiles, ala-product-infrastructure, ala-systems, ansible, ala-product-auth, authorisation, roles and 53 more

Greg Macfarlane [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Forest Modeling and Analysis, Forest Observation and Management
Topics: abundance, demography, dynamic, dynamics, ecology, fgeo, forestgeo, forests, habitat, metapackage and 6 more

Michael Toth [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Forest Modeling and Analysis, Forest Observation and Management
Topics: abundance, demography, dynamic, dynamics, ecology, fgeo, forestgeo, forests, habitat, metapackage and 1 more

MattParkan [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Forest Observation and Management
Topics: asprs, digital-forestry-toolbox, forest, forestry, laser, laser-scanning, octave, point-cloud, vegetation

Serhat Cevikel [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Forest Modeling and Analysis, Forest Observation and Management
Topics: abundance, demography, dynamic, dynamics, ecology, fgeo, forestgeo, forests, habitat, metapackage and 1 more

Paulo Viana [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Forest Observation and Management, Forest Remote Sensing
Topics: forest-inventory, forestry, las, admin, admin-dashboard, admin-on-rest, admin-ui, frontend-framework, material-ui, react-admin and 1 more

Brewster Malevich [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics: dendrochronology, ecology, forestfire, plot, fire, forest, paper, alkenone, bayesian-inference, calibration and 37 more

Daniel Falster [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Plants and Vegetation
Topics: plants, traits, ecology, ozunconf17, unconf

Thomas Stjernegaard [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Biodiversity Data Access and Management, Biodiversity and Species Distribution
Topics: biodiversity-informatics, biodiversity, life, nomenclature, taxonomy, taxonomic-classifications, taxonomies, taxonomy-database, taxonomy-management, jekyll and 7 more

John Wieczorek [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Biodiversity Data Access and Management, Biodiversity and Species Distribution
Topics: biodiversity-informatics, tdwg, interest-group, darwin-core, gbif, ontologies, terms, vocabularies, xml-schema

mdoering [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Biodiversity Data Access and Management, Biodiversity and Species Distribution
Topics: biodiversity-informatics, biodiversity, life, nomenclature, taxonomy, darwin-core

brycefrank [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Forest Modeling and Analysis, Forest Observation and Management
Topics: carbon, forest-inventory, forestry

Carlos Matallín [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Forest Observation and Management
Topics: deforestation, forest-monitoring, carto, geolocation, location-services, location

lazyoracle [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Wildfire
Topics: earth-observation, wildfire-forecasting, catboost, climate-change, lightgbm, wildfire, bayesian-optimization, bayesopt, binder, hyperparameter and 4 more

Adam Mulligan [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Forest Observation and Management
Topics: deforestation, forest-monitoring

Willian Viana [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Forest Observation and Management
Topics: deforestation, forest-monitoring, forests, gfw, helpdesk, garden

beej23 [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Forest Observation and Management
Topics: deforestation, forest-monitoring

Adrián [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Forest Observation and Management
Topics: deforestation, forest-monitoring

KarlaRenschler [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Forest Observation and Management
Topics: deforestation, forest-monitoring, gfw, gfw-fires

David Gonzalez [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Forest Observation and Management
Topics: deforestation, forest-monitoring

Luis Zenteno [email protected]

OST Projects: 1
Categories: Biosphere
Sub Categories: Forest Observation and Management
Topics: deforestation, forest-monitoring, forests, gfw, helpdesk