Transboundary Diagnostic Analysis (TDA)
All Transboundary Diagnostic Analysis endorsed by countries participating in GEF IW projects are available here.
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- SIDS (Africa)
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- SIDS (Oceania)
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- South America
- South-Eastern Asia
- Southern Africa
- Southern Asia
- Southern Europe
- Western Africa
- Western Asia
- Western Europe
- All
- Abhe Bid
- African Rift Valley Aquifer
- Agslev Akstafa/Tavush Tovuz aquifer
- Agua Dulce
- Agulhas Current (LME)
- Ahangaran
- Akpa
- Alazan-Agrichay aquifer
- Albert
- Alluvial/Paleogene-Neogene and Oxfordian - Cenomanien aquifers
- Almos-Vorzik aquifer
- Alsek
- Alta pianura isontina
- Amacuro
- Amazon
- Amazonas
- Amu-Darya
- Amudaryia
- Amur
- An Nahr Al Kabir
- Antarctica (LME)
- Aquifer Anarjokka
- Aquifer F1/Permian-Upper Devonian
- Aquifer F2/Permian-Upper Devonian
- Arabian Sea (LME)
- Arafura Sea
- Aral Sea
- Aral Sea
- Arctic (LME)
- Argentina
- Artibonite
- Asi/Orontes
- Astara Chay
- Atlas Mountains Transboundary aquifers
- Atrak
- Atui
- Aviles
- Awash
- Aysen
- Baggara Basin
- BahuKalat/Rudkhanehye
- Baia Grande
- Baikal
- Baker
- Baltic Sea (LME)
- Bangau
- Bann
- Baraka
- Baranja/Drava East
- Barents Sea (LME)
- Barima
- Barta
- Basswood Lake
- Bay of Bengal (LME)
- Beaufort Sea (LME)
- Bei Jiang/Hsi
- Beilun
- Beilun River Basin
- Beli Drim/Drini Bardhe aquifer
- Belize
- Benguela Current (LME)
- Benito/Ntem
- Bia
- Bidasoa
- Bileko Lake aquifer
- Bizeljsko/ Sutla; Boc; Rogaška; Atomske toplice; Bohor, Orlica aquifers
- Black Sea (LME)
- Boa Vista-Serra de Tucano-North Savanna
- Boca del Cerro-San Pedro
- Bodensee
- Bodrog aquifer
- Bolsón del Hueco-Valle de Juárez
- Brazil, Bolivia
- Brazil, Uruguay
- Bregana aquifer; Bregana-Obrezje/Sava- Samobor
- Brestovica groundwater body
- Buenos Aires
- Burundi, Rwanda
- Buyr
- Buzi
- Ca/Song-Koi
- Calcaires de l'Avesnois
- Calcaires et marnes jurassiques chaîne du Jura
- Calcaires jurassiques BV de la Jougnena et Orbe
- Calcaires jurassiques chaîne du Jura - BV Doubs
- Calcaires jurassiques sous couverture du Pays de Gex
- California Current (LME)
- Cambrian-Vendian Voronka groundwater body
- Canada, United States
- Canary Current (LME)
- Cancoso/Lauca
- Candelaria
- Canin
- Caribbean Sea (LME)
- Carmen Silva/Chico
- Carso classico (isontino e triestino)
- Caspian Sea
- Castletown
- Catatumbo
- Catena paleocarnica centrale
- Catena paleocarnica orientale - Val Canale
- Cavally
- Celtic-Biscay Shelf (LME)
- Cenomanian carbonate-terrigenous aquifer ; Aquifers in Quaternary deposits shared by Belarus an...
- Cerknica/ Kupa, Kocevje Goteniška gora, Radovica-Metlika/ Zumberak aquifers
- Cerneško- Libeliško aquifer; Kucnica aquifer
- Cestos
- Cetina aquifer
- Chad
- Chamelecon
- Chang Jiang (Yangtze) River Basin (Yellow Sea)
- Changuinola
- Chicomuselo-Selequa/Cuilco
- Chilkat
- Chiloango
- Chimion-Aval
- Chira
- Chiriqui
- Chiuta
- Choluteca
- Chu/Shu aquifer
- Chukchi Sea (LME)
- Chust-Pap aquifer
- Chuy
- CIUDAD RODRIGO
- Cividalese
- cks_0200_gwl_1
- Coastal Sedimentary Basin 1
- Coastal Sedimentary Basin 3
- Coatan Achute
- Cochrane
- Coco/Segovia
- Coesewijne
- Colombia, Venezuela
- Colorado
- Columbia
- Comau
- Conejos Médanos-Bolsón de la Mesilla
- Congo Intra-cratonic Basin
- Congo/Zaire
- Conventillos
- Coral Sea Basin (LME)
- Corantijn/Courantyne
- Corredores/Colorado
- Corubal
- Coruh
- Costeiro
- Cross
- Cuenca Baja del Río Bravo / Grande
- Cuenca Baja del Río Colorado
- Cullen
- Cuvelai and Etosha Basin
- Cuvelai/Etosha
- cvs_0160_gwl_1
- CZ_GB_16410
- CZ_GB_16520
- D10/Polotsk and Lansky terrigenous complex of Middle and Upper Devonian aquifer
- D9/Upper Devonian terrigenous-carbonate complex aquifer; Cenomanian terrigenous aquifer
- Da Yunhe R.B. & Grand Canal district between (Yellow & Yangtee)
- Dacian basin
- Dalverzin aquifer
- Danube
- Danube-Prut
- Danube-Tisza-interflowe/Backa aquifer
- Daoura
- Dasht
- Daugava
- Daugava
- Dawa
- DE_GB_3_03
- DE_GB_Ei22
- DE_GB_Ei23
- Dead Sea
- Debet aquifer
- Deep groundwater body – thermal water
- Dinaric Littoral (West Coast aquifer)
- Disa
- Dnieper
- Dniester
- Dniester
- Dobrudja/Dobrogea Neogene – Sarmatian aquifer
- Dolinsko-Ravensko/ Mura aquifer
- Domaine plissé BV Cenise et Pô
- Domaine plissé BV Roya, Bévéra
- Domaine plissé Pyrénées axiales et alluvions IVair
- Don
- Douro/Duero
- Dra
- Drava/ Drava West aquifer
- Drin
- Dunántúli középhegység északi rész/Komarnanska Vysoka Kryha
- Dustlik
- East Bering Sea (LME)
- East Brazil Shelf (LME)
- East Central Australian Shelf (LME)
- East China Sea (LME)
- East Greenland Shelf (LME)
- East Siberian Sea (LME)
- Eastern Mediterranean
- Ebro
- Edward
- Edwards-Trinity-El Burro
- El Cóndor-Cañadon del Cóndor
- El Naranjo
- Elancik
- Elbe
- Erma Reka
- Erne
- Errachidia Basin
- Essequibo
- Evros/Meric
- Fagnano
- Fane
- Faroe Plateau (LME)
- Fenney
- Finland, Russia
- Finland, Russia
- Firth
- Fleons-Cimon
- Flurry
- Fly
- Flysch goriziano
- Flysch triestino
- Foyle
- Fraser
- FYROM-Central Serbia
- FYROM-SW Serbia
- Gaiba
- Gail
- Gallegos/Chico
- Gambia
- Ganges River plain
- Ganges-Brahmaputra-Meghna
- Garonne
- Gash
- Gauja
- Geba
- Gedaref
- General Vintter
- Geneva
- Genevese aquifer
- Glama
- Goascoran
- Golok
- Goricko aquifer ; Mura – Zala basin / Radgona – Vaš aquifer; Kot aquifer
- Great Scarcies
- Grense Jakobselv aquifer
- Grès du Lias inférieur d'Hettange Luxembourg
- Grès du Trias inférieur du bassin houiller
- Grès vosgien captif non minéralisé
- Grès vosgien en partie libre
- Grijalva
- Groundwater body D4/ Upper Devonian Stipinai LT002003400
- Groundwater body D5
- Groundwater body D6
- Groundwater body D8
- Groundwater body F3
- Groundwaterbody Hügelland Raab West
- Groundwaterbody Hügelland RaabOst
- Group of groundwater bodies Hügelland Rabnitz
- Group of groundwater bodies Günser Gebirge Umland
- Grupo Roraima
- Guadiana
- Guaraní
- Guinea Current (LME)
- Guir
- Gulf of Alaska (LME)
- Gulf of California (LME)
- Gulf of Mexico (LME)
- Gulf of Thailand (LME)
- Günstal aquifer
- Hai He River Basin
- Hamun-E Saberi
- Han
- Har Us Nur
- Hari/Harirud
- Hauran and Jabal Al-Arab
- Havost
- Heideboden [DUJ]
- Helmand
- Herher, Malishkin and Jermuk aquifers
- Hondo
- Hovs Gol
- Hudson Bay (LME)
- Humboldt Current (LME)
- Iberian Coastal (LME)
- Iceland Shelf (LME)
- IE_NW_G_082
- IEGBNI_NB_G_007
- IEGBNI_NW_G_028
- IEGBNI_NW_G_048
- IEGBNI_NW_G_050
- Ili/Kunes He
- Incomati
- India River plain
- India, Pakistan
- Indian Ocean
- Indonesian Sea (LME)
- Indus
- Insular Pacific-Hawaiian (LME)
- Iori/Gabirri aquifer
- Ipoly völgy/ Alúvium Ipla aquifer
- Iran, Iraq
- Iran, Turkmenistan
- Irhazer-Iullemeden Basin
- Irrawaddy
- Iskovat-Pishkaran aquifer
- Isonzo
- Ivory Coast, Ghana
- Jablanica/Golobordo aquifer
- Jacobs
- Jenisej/Yenisey
- Johore
- Jordan
- Juba-Shibeli
- Jubba
- Jurado
- Kagera Aquifer
- Kaladan
- Kanunkankaat aquifer
- Kara Sea (LME)
- Karasjok aquifer
- Karatag/North-Surhandarya aquifer
- Karaungur
- Karnaphuli
- Karoo Sandstone Aquifer
- Karoo Sedimentary Aquifer
- Karstwasser-Vorkommen Karawanken / Karavanke
- Kasansay aquifer
- Keita Basin
- Kemi
- Khanka
- Kilimanjaro Aquifer
- Kivu
- Klaralven
- Kobariški stol aquifer
- Kofarnihon aquifer
- Kogilnik
- Kokaral
- Komarnanska Vysoka Kryha / Dunántúli – középhegység északi rész
- Komoe
- Korab/Bistra – Stogovo aquifer
- Körös-Crisuri holocene, pleistocene transboundary aquifer; Hortobágy-Nagykunság Bihar northern part
- Körös-valley, Sárrét, shallow/Crisuri aquifer
- Kowl E Namaksar
- Krka
- Krka aquifer
- Ktsia-Khrami aquifer
- Kunene
- Kupa aquifer
- Kura-Aras
- Kuroshio Current (LME)
- La Guajira
- La Plata
- Lac La Croix
- Lafnitztal aquifer
- Lagoon Mirim
- l'Air Crystalline Aquifer
- Lake Chad
- Lake Chad Basin
- Lake Champlain
- Lake Erie
- Lake Fagnano
- Lake Huron
- Lake Natron
- Lake of the Woods
- Lake Ontario
- Lake Prespa
- Lake Saint Clair
- Lake Superior
- Lake Titicaca-Poopo System
- Lake Turkana
- Lake Ubsa-Nur
- Lake Victoria
- Laptev Sea (LME)
- Lava/Pregel
- Lempa
- Leninak-Shiraks aquifer
- Lenkoran/Astara
- Levajok-Valjok aquifer
- Lielupe
- Lim aquifer
- Lima
- Limpopo
- Limpopo Basin
- Liptako-Gourma Aquifer
- Literáneo-Chuy
- Little Scarcies
- Loes
- Loffa
- Lotagipi Swamp
- LOW MIÑO
- Ma
- Macva-Semberija aquifer
- Maggiore
- Malawi
- Malko Tarnovo kasrt waterbearing massif
- Mana-Morro
- Mandiora
- Maputo
- Maritsa
- Maroni
- Márquez de Comillas-Chixoy/Xaclbal
- Massacre
- Massicci carbonatici della catena paleocarnica 1
- Massicci carbonatici della catena paleocarnica 2
- Massicci carbonatici della catena paleocarnica 3
- Mataje
- Maylusu aquifer
- Mazursko-Podlashi region aquifer
- Mbe
- Mediterranean Sea (LME)
- Medium Zambezi Aquifer
- Medjerda
- Mekong
- Mekong River plain
- Memphremegog
- Merti Aquifer
- Metohija aquifer
- Mgahinga
- Middle Heilongjian-Amur River Basin
- Middle Sarmantian Pontian aquifer
- Middle-Lower-Devonian groundwater body (D2-1)
- Mindanao Island coastal drainage (S) Celebes Sea, (N) Pacific
- Mino
- Mira
- Mirna/Istra aquifer ; Mirna aquifer ; Obmocje izvira Rižane aquifer
- Miroc & Golubac
- Mississippi
- Mius
- Moa
- Moho
- Mono
- Moraleja aquifer
- Motagua
- Motaqua
- Mount Elgon Aquifer
- Mourgana Mountain/ Mali Gjere aquifer
- Mourzouk-Djado Basin
- Mura aquifer
- Murgab
- Mweru
- Naatamo
- Nahr El Kebir
- Nakhichevan/Larijan and Djebrail aquifer
- Nanay
- Narva
- Naryn aquifer
- Nastan-Trigrad
- Nata Karoo Sub-basin
- Natron
- Negro
- Neiden aquifer
- Nelson-Saskatchewan
- Neman
- Nemechka/Vjosa-Pogoni aquifer
- Neretva
- Neretva Right coast aquifer
- Nestos
- Neusiedl
- New Guinea Island
- New Zealand Shelf (LME)
- Newfoundland-Labrador Shelf (LME)
- Niger
- Nile
- Nogales
- North and South Banat or North and Mid Banat aquifer
- North Atlantic Ocean
- North Australian Shelf (LME)
- North Brazil Shelf (LME)
- North Korea, China
- North Pacific Ocean
- North Sea (LME)
- North Talas aquifer
- Northeast Australian Shelf (LME)
- Northeast Backa/Danube -Tisza Interfluve or Backa/Danube-Tisza Interfluve aquifer
- Northeast U.S. Continental Shelf (LME)
- Northern Great Plains
- Northern Kalahari / Karoo Basin
- North-Kazakhstan aquifer
- Northwest Australian Shelf (LME)
- Northwest Sahara Aquifer System (NWSAS)
- Norwegian Sea (LME)
- Nu River Valley
- Nubian Sandstone Aquifer System (NSAS)
- Nyanga
- Nyírség, keleti rész / Nyírség, east margin aquifer
- Ob
- Ocosingo-Usumacinta-Pocóm-Ixcán
- Oder/Odra
- Ogooue
- Ohrid
- Oiapoque/Oyupock
- Okanagan-Osoyoos
- Okavango
- Olanga
- Opatija/Istra aquifer aquifer ; Notranjska Reka aquifer (part of Bistrica-Snežnik in Slovenia)
- Oral/Ural
- Orange
- Orestiadas System
- Orinoco
- Ormoz-Sredisce ob Drava/Drava-Varazdin aquifer
- Orvilos-Agistros/Gotze Delchev aquifer
- Osh-Aravan aquifer
- Osp-Boljunec groundwater body
- Oued Bon Naima
- Oueme
- Oulu
- Oyashio Current (LME)
- Pacific Central-American Coastal (LME)
- Pakchan
- Palena
- Paleogene and Cretaceous aquifers
- Paleogene Aquifer
- Pandaruan
- Pangani
- Pangong
- Pantanal
- Parnu
- Pascua
- Pasvik
- Pasvikeskeren aquifer
- Patagonian Shelf (LME)
- Patia
- Paz
- Pedernales
- Peipus
- Pelagonia- Florina/Bitolsko aquifer
- Península de Yucatán-Candelaria-Hondo
- Pester aquifer
- Philippine Sea
- Pinkatal aquifer
- Pleševica/ Una aquifer
- Pleistocene-Holocene Mures/Maros alluvial fan aquifer
- Pliocène de Haguenau et nappe d’Alsace
- Po
- Pool Malebo
- Posavina I/ Sava aquifer
- Pre-Caspian aquifer
- Preirtysh aquifer
- Prespa
- Prespa and Ohrid Lake aquifer
- Pretashkent aquifer
- PripyPinaat'
- Prohladnaja
- Prut
- Psou aquifer
- Pu Lun T'o
- Puelo
- Puneños
- Pungwe
- Puyango-Tumbes-Chira-Catamayo
- Pyhajarvi
- Quaternary sediment aquifer
- Raabtal aquifer
- Rabeljski rudnik aquifer
- Rabnitztal aquifer
- Rainy Lake
- Ramotswa Dolomite Basin
- Red Sea (LME)
- Red/Song Hong
- Rezvaya
- Rhine
- Rhone
- Rijecina-Zvir aquifer; Novokracine aquifer
- Rio Grande (North America)
- Rio Grande (South America)
- Rio Sao Francisco River Basin
- Roia
- RU1
- RU2
- RU3
- RU4
- Rudozem
- Russia, China
- Russia, Estonia
- Russia, Kazakhstan
- Russia, Mongolia
- Russia, Norway
- Ruvuma
- Rweru
- Sabi
- Sables du Landenien des Flandres
- Sables du Landenien d'Orchies
- Saigon
- Salaca
- Salween
- Samur
- Samur aquifer
- San Juan
- San Martin
- San Martin
- San Pedro
- Sanaga
- Sandansky-Petrich aquifer ; Sandansky valley aquifer ; Petrich valley aquifer
- Sarakhs Aquifers (Karat, Taybad, Torbat-e-jam, Janatabad, Aghdarband, Sarakhas)
- Sarata
- Sarstun
- Sassandra
- Saumatre
- Schelde
- Scotian Shelf (LME)
- Scudai
- Scutari
- Sea of Japan (LME)
- Sea of Okhotsk (LME)
- Secovlje-Dragonja/Istra aquifer
- Seine
- Sembakung
- Senegal
- Senegalo-Mauretanian Basin
- Seno Union/Serrano
- Sepik
- Shabelle
- Sherabad
- Shorsu aquifer
- Shu/Chu
- Siret
- Sixaola
- Skadar/Shkoder Lake, Dinaric east coast aquifer
- Skagit
- Slovensky kras / Aggtelek aquifer
- Small Islands States (LME)
- Smolyan
- Socle du Brabant
- Sokh aquifer
- Somali Coastal Current (LME)
- Somes/Szamos alluvial fan aquifer
- Song Vam Co Dong
- Sonoyta-Pápagos
- South Atlantic Ocean
- South Brazil Shelf (LME)
- South Burma
- South China Sea (LME)
- South Pacific Ocean
- South Talas aquifer
- South Western Backa/Dunav aquifer
- Southeast Australian Shelf (LME)
- South-east Kalahari / Karoo Basin
- Southeast U.S. Continental Shelf (LME)
- Southern Ocean
- Southern of Himalayas
- South-Pred-Ural aquifer
- Southwest Australian Shelf (LME)
- Spain, Portugal
- Srem-West Srem/ Sava aquifer
- St. Croix
- St. Francis
- St. John (Africa)
- St. John (North America)
- St. Lawrence
- St. Paul
- Stara Planina/ Salasha Montana aquifer
- Stikine
- Stora Le
- Stremtal aquifer
- Struma
- Suchiate
- Sudd Basin
- Sujfun
- Sulak
- Sulak Aquifer
- Sulu-Celebes Sea (LME)
- Sulyukta-Batken-Nau-Isfara aquifer
- Sweden, Norway
- Sweden, Norway
- Sweden, Norway
- Syr-Darya 1 aquifer
- Syr-Darya 2
- Syr-Darya 3
- Syrt aquifer
- Systima Axiou
- Systima Doiranis
- Systima Pogonianis
- Systima Triklariou Kastorias
- Szigetköz, Hanság-Rábca/Podunajska basin, Zitny Ostrov
- Tacheng Basin/Alakol
- Tafna
- Tagus/Tejo
- Taku
- Talas
- Tami
- Tana
- Tana Nord
- Tanganyika
- Tano
- Tano Basin
- Taoudeni Basin
- Tara Massif
- Tarim
- Tasman Sea (LME)
- Tebrau
- Tekes aquifer
- Temash
- Terek
- Terek aquifer
- Tetovo-Gostivar
- Thailand, Burma
- Thukela
- Tiberias
- Tigris-Euphrates/Shatt al Arab
- Tijuana
- Timor Sea
- Tindouf Aquifer
- Tin-Séririne Basin
- Titicaca
- Titicaca
- Tjeroaka-Wanggoe
- Topolovgrad Massif aquifer
- Torne/Tornealven
- Tornetrask
- Trebišnjica/Neretva Left coast aquifer
- Tuli Karoo Sub-basin
- Tuloma
- Tumbes
- Tumen
- Turkana
- Ukraine, Moldova
- Ukraine, Romania
- Umba
- Umbeluzi
- United States, Canada
- United States, Canada
- Upper – Middle Devonian LT001003400
- Upper Devonian terrigenous-carbonate aquifer
- Upper Jezira / Mesopotamia
- Upper Pleistocenesomes alluvial fan
- Upper-Devonian groundwater body (D3)
- Upriver of Zuo River
- Ural
- Utamboni
- Uvs
- Vakhsh aquifer
- Valdivia
- Vardar
- Vegas Bajas
- Velaka
- Venta
- Vijose
- Vistula/Wista
- Volga
- Volta
- Vorotan-Akora aquifer
- Vrtojbensko polje aquifer; (Aquifer system of Gorica-Vipava valley, Alluvial gravel aquifer of ...
- Vuoksa
- Wadi Al Izziyah
- West Bering Sea (LME)
- West Central Australian Shelf (LME)
- West Greenland Shelf (LME)
- Western Rift valley Sediments
- Whiting
- Wiedau
- Wiedau aquifer
- Xorezm
- Yalu
- Yalu River Valley
- Yaqui
- Yarmazar
- Yelcho
- Yellow Sea (LME)
- Yenisei upstream
- Yrendá-Toba-Tarijeño
- Yser
- Yukon
- Zafarobod aquifer
- Zaisk aquifer
- Zambezi
- Zanderij
- Zapaleri
- Zarumilla
- Zemen
- Zeravshan aquifer
- Zharkent aquifer
- Zout grondwater in ondiepe zandlagen
- All
- Areas Beyond National Jurisdiction (ABNJ) / Marine Biodiversity Beyond National Jurisdiction (BBNJ)
- Biodiversity
- Blue economy
- Circular economy and green transition
- Citizen science
- Climate change, environmental pressures, and emerging stressors
- Communications and knowledge management
- Conjunctive water management/surface & groundwater management
- Coral Reef
- Ecosystem-based management
- Inclusivity: indigenous peoples, local communities, gender, youth, minorities
- Innovative tools and solutions
- Integrated Coastal Management (ICZM)
- Integrated Water Resource Management (IWRM)
- Large marine ecosystems (LME)
- Marine Protected Areas (MPAs)
- Marine Spatial Planning (MSP)
- Measuring impact, systems thinking, and transformational solutions
- Nexus (water–food–energy–ecosystems)
- Other
- Partnerships and cross-thematic collaboration
- Pollution, plastic pollution, wastewater
- Project management
- Small island developing states (SIDS)
- Source-to-Sea / Ridge-to-Reef
- Strategic Action Programme (SAP)
- Sustainability beyond project lifetime
- Sustainable financing and private sector engagement
- Sustainable fisheries & aquaculture management
- Transboundary cooperation, governance & policy
- Transboundary Diagnostic Analysis (TDA)
Documents (104)
TDA
Russian
•
PDF
•
15 May, 2026
TDA
English
•
PDF
•
15 May, 2026
TDA
English
•
APPLICATION/PDF
•
27 Jan, 2026
TDA
English
•
APPLICATION/PDF
•
27 Jan, 2026
TDA
Spanish
•
APPLICATION/PDF
•
27 Jan, 2026
TDA
English
•
PDF
•
21 Oct, 2024
TDA
Spanish
•
PDF
•
13 Mar, 2024