N: 90 S: -60 E: 180 W: -180
Description
NASA Global Land Data Assimilation System Version 2 (GLDAS-2) has three components: GLDAS-2.0, GLDAS-2.1, and GLDAS-2.2. GLDAS-2.0 is forced entirely with the Princeton meteorological forcing input data and provides a temporally consistent series from 1948 through 2014. GLDAS-2.1 is forced with a combination of model and observation data from 2000 to present. GLDAS-2.2 product suites use data assimilation (DA), whereas the GLDAS-2.0 and GLDAS-2.1 products are "open-loop" (i.e., no data assimilation). The choice of forcing data, as well as DA observation source, variable, and scheme, vary for different GLDAS-2.2 products.
GLDAS-2.2 is new to the GES DISC archive and currently includes a main product from CLSM-F2.5 with Data Assimilation for the Gravity Recovery and Climate Experiment (GRACE-DA) from February 2003 to present. The GLDAS-2.2 data are available in two production streams: one with GRACE data assimilation outputs (the main production stream), and one without GRACE-DA (the early production stream). Since the GRACE data have a 2-6 month latency, the GLDAS-2.2 data are first created without GRACE-DA, and are designated as the Early Product (EP), with about 1 month latency. Once the GRACE data become available, the GLDAS-2.2 data are processed with GRACE-DA in the main production stream and are removed from the Early Product archive.
The GLDAS-2.2 GRACE-DA product was simulated with Catchment-F2.5 in Land Information System (LIS) Version 7. The data product contains 24 land surface fields from February 1, 2003 to present.
The simulation started on February 1, 2003 using the conditions from the GLDAS-2.0 Daily Catchment model simulation, forced with the meteorological analysis fields from the operational European Centre for Medium-Range Weather Forecasts (ECMWF) Integrated Forecasting System. The total terrestrial water anomaly observation from GRACE satellite was assimilated (Li et al, 2019). Due to the data agreement with ECMWF, this GLDAS-2.2 daily product does not include the meteorological forcing fields.
The GLDAS-2.2 data are archived and distributed in NetCDF format.
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Product Summary
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Publications Citing This Dataset
| Title | Year Sort ascending | Author | Topic |
|---|---|---|---|
| Water availability shapes temporal patterns of extrafloral nectar secretion and ant visitation to a Neotropical legume | Melati, B., Souza, C., Nogueira, A., Leal, L. C. | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water, Tropopause, Air Temperature, Upper Air Temperature, Total Precipitable Water, Water Vapor, Cloud Height, Cloud Top Pressure, Cloud Top Temperature, Cloud Vertical Distribution, Emissivity, Sea Surface Temperature, Skin Temperature, Carbon Monoxide, Geopotential Height, Water Vapor Profiles, Cloud Liquid Water/Ice, Outgoing Longwave Radiation, Methane, Atmospheric Ozone, Skin Temperature, Specific Humidity, Snow/Ice, Evaporation, Latent Heat Flux, Latent Heat Flux, Sensible Heat Flux, Diffusion, Surface Winds, Wind Speed, U/V Wind Components, Wind Stress, Wind Stress, Surface Roughness, Planetary Boundary Layer Height, Ice Fraction | |
| Leaf Shedding During Drought Reduces Hydraulic Stress in Trees | Quetin, G. R., Anderegg, L. D. L., Trugman, A. T. | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water | |
| Sinkhole risk forecasting in the Lithuania-Latvia Karst region using | Samalavicius, Vytautas, Bikse, Janis, Zaslavsky, Ilya, Lekstutyte, Ieva, Arustiene, Jurga, Zarzojus, Gintaras, Kunsakova, Assemzhan, Retike, Inga, Gadeikiene, Sonata, Gadeikis, Saulius | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water | |
| Assessing the impacts of urbanization and climate variability on | Shah, Adnan Abbas | Precipitation, Rain, Precipitation Amount, Precipitation Rate, Snow, Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water, Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Photosynthesis, Primary Production, Latent Heat Flux, Emissivity | |
| Reconstructing reservoir water levels using basin-scale GRACE TWS and | Besnier, Jessica, Getirana, Augusto, Biswas, Nishan Kumar, Lakshmi, Venkataraman | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water, Terrestrial Water Storage | |
| Assessing Flash Drought Development and Propagation Across the Contiguous United States Using Remote Sensing | Zeraati, Masoud, Farahmand, Alireza, Seager, Richard, Fowler, Hayley J., Madani, Nima, Parazoo, Nicholas, Manning, Colin, White, Christopher J., Wen, Yixin, Mehran, Ali, AghaKouchak, Amir | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Photosynthesis, Primary Production, Latent Heat Flux, Precipitation, Precipitation Amount, Tropopause, Air Temperature, Upper Air Temperature, Total Precipitable Water, Water Vapor, Cloud Height, Cloud Top Pressure, Cloud Top Temperature, Cloud Vertical Distribution, Emissivity, Sea Surface Temperature, Skin Temperature, Carbon Monoxide, Geopotential Height, Water Vapor Profiles, Cloud Liquid Water/Ice, Outgoing Longwave Radiation, Methane, Atmospheric Ozone | |
| A new, long-term root zone soil moisture dataset for operational agricultural drought monitoring over Africa | Maidment, Ross I., Quaife, Tristan, Pinnington, Ewan, Black, Emily, Ejigu, Amsalework, Kumar, Dhirendra, Thomas, Simon | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Air Temperature, Specific Humidity, Evapotranspiration, Wind Speed, Rain, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Cover, Snow Depth, Snow Water Equivalent, Runoff, Surface Temperature, Humidity, Surface Winds, Precipitation Rate, Ground Water, Root Zone Soil Moisture, Surface Soil Moisture | |
| Comparing novel backward hydrological models for watershed-scale precipitation estimation: an evaluation of inverted PDM and Kirchner-hybrid structures | Dastjerdi, Pouria Asgari, Nasseri, Mohsen | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water | |
| Hydrological Analysis of the Middle and Lower Paraguay Basin Based on Water Balance and Storage Using Imerg, GLDAS, and Grace Products (2003-2023) | Villalba, Rossana, Ferral, Anabella, BaezGiven, Julian, Kurita, Jorge, Bonansea, Matias, Bertoni, Juan Carlos | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water, Precipitation, Precipitation Amount | |
| Propagation of meteorological to agricultural flash droughts using a novel weekly index | Chen, Si, Wu, Jiaojiao, Liu, Jiahao, Iqbal, Mudassar, Li, Xiaolan, Liu, Hai, Waseem, Muhammad, Luo, Zhe | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water | |
| Carbon emission based predictions of anthropogenic impacts on groundwater storage at typical basins in 2050 | Zhao, Ying, Ma, Jiabin, Li, Yuelei, Cheng, Kui, Zhang, Meiling, Liu, Zhuqing, Yang, Fan | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water | |
| Identifying potential hotspots of groundwater-climate interaction in the Kalahari Aquifer System, Upper Zambezi Basin, Southern Africa | Banda, Kawawa, Shilengwe, Christopher | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water | |
| Benchmarking of snow water equivalent (SWE) products based on outcomes of the SnowPEx Intercomparison Project | Mudryk, Lawrence, Mortimer, Colleen, Derksen, Chris, Elias Chereque, Aleksandra, Kushner, Paul | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Soil Heat Budget, Soil Heat Budget, Soil Temperature, Soil Infiltration, Soil Infiltration, Surface Soil Moisture, Root Zone Soil Moisture, Soil Moisture/Water Content, Evaporation, Surface Water, Runoff Rate, Average Flow, Average Flow, Precipitation, Snow/Ice, Snow Depth, Snow Melt, Snow/Ice Temperature, Leaf Area Index (LAI), Leaf Area Index (LAI), Ground Water | |
| An ensemble machine learning approach for predicting groundwater storage for sustainable management of water resources | Uddin, Mohammed Sakib, Mitra, Bijoy, Mahmud, Khaled, Rahman, Syed Masiur, Chowdhury, Shakhawat, Rahman, Muhammad Muhitur | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water | |
| A Multi-Scale Comprehensive Evaluation for Nine Evapotranspiration Products Across Mainland China Under Extreme Climatic Conditions | Qian, Long, Wu, Lifeng, Dong, Ning, Dai, Tianjin, Yu, Xingjiao, Bai, Xuqian, Yang, Qiliang, Liu, Xiaogang, Chen, Junying, Zhang, Zhitao | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Air Temperature, Specific Humidity, Evapotranspiration, Wind Speed, Rain, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Cover, Snow Depth, Snow Water Equivalent, Runoff, Surface Temperature, Humidity, Surface Winds, Precipitation Rate, Ground Water, Latent Heat Flux | |
| Early hydrothermal conditions have a vital role in the responses of | Xue, Xu, Chen, Wen | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water | |
| Lightning-ignited wildfire prediction in the boreal forest of northeast | Gao, Cong, Shi, Chunming, Li, Jinbao, Li, Junran, Zhang, Xu, Huang, Xinyan, Shi, Fangzhong, Yang, Jing, Bai, Ye, Liu, Xiaodong | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water, Fire Ecology, Biomass Burning, Wildfires, Fire Occurrence, Burned Area | |
| Identifying Optimal Reanalysis and Remote Sensing Data Combinations for | Pan, Suli, Ma, Di, Gu, Haiting, Xu, Chao, Zhou, Xiaojie, Zhu, Qiang | Total Surface Precipitation Rate, Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water | |
| How much water vapour does the Tibetan Plateau release into the atmosphere? | Zheng, Chaolei, Jia, Li, Hu, Guangcheng, Menenti, Massimo, Timmermans, Joris | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Soil Heat Budget, Soil Heat Budget, Soil Temperature, Soil Infiltration, Soil Infiltration, Surface Soil Moisture, Root Zone Soil Moisture, Soil Moisture/Water Content, Evaporation, Surface Water, Runoff Rate, Average Flow, Average Flow, Precipitation, Snow/Ice, Snow Depth, Snow Melt, Snow/Ice Temperature, Leaf Area Index (LAI), Leaf Area Index (LAI), Ground Water, Latent Heat Flux | |
| Multi-source evaluation of a non-stationary drought index informed by climatic teleconnections across the Murray-Darling Basin, Australia | Rezaie-Balf, Mohammad, Chua, Lloyd H.C. | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water | |
| Monitoring drought over the Gavkhouni Lake using Terrestrial Water Storage data | Khesali, Elahe, Ghasemi, Elham, Almutairi, Fawziah | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water | |
| Synchronicity analysis of meteorological variables on agricultural | Liu, Fang, Zhang, Hongbo, Li, Yihang, Ning, Zhiyuan, Hao, Shuai | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water | |
| Unveiling the escalating impact of human activities on groundwater | Zhang, Xiao, Wu, Xiong, Mu, Wenping | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water | |
| Widespread Sensitivity of Vegetation to the Transition From Normal | Liao, Jiangling, Xu, Yuyue, Pi, Junzheng, Li, Yuchen, Ke, Changqing, Zhan, Wenfeng, Chen, Jianli | Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Rain, Precipitation Rate, Snow, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water, Land Use/Land Cover Classification | |
| Understanding mesoscale convective processes over the Congo Basin using | Zhao, Siyu, Fu, Rong, Nunez Ocasio, Kelly, Nystrom, Robert, He, Cenlin, Zhang, Jiaying, Jiang, Xianan, Teixeira, Joao | Precipitation, Precipitation Amount, Precipitation Rate, Snow, Rain, Brightness Temperature, Surface Pressure, Heat Flux, Longwave Radiation, Shortwave Radiation, Surface Temperature, Humidity, Evapotranspiration, Surface Winds, Soil Moisture/Water Content, Soil Temperature, Land Surface Temperature, Snow Water Equivalent, Runoff, Ground Water |
Variables
The table below lists the variables contained within a single granule for this dataset. Variables often contain observed or derived geophysical measurements collected from a variety of sources, including remote sensing instruments on satellite and airborne platforms, field campaigns, in situ measurements, and model outputs. The terms variable, parameter, scientific data set, layer, and band have been used across NASA’s Earth science disciplines; however, variable is the designated nomenclature in NASA’s Common Metadata Repository (CMR). Variable metadata attributes such as Name, Description, Units, Data Type, Fill Value, Valid Range, and Scale Factor allow users to efficiently process and analyze the data. The full range of attributes may not be applicable to all variables. Additional information on variable attributes is typically available in the data, user guide, and/or other product documentation.
For questions on a specific variable, please use the Earthdata Forum.
| Name Sort descending | Description | Units | Data Type | Fill Value | Valid Range | Scale Factor | Offset |
|---|---|---|---|---|---|---|---|
| ACond_tavg | ACond_tavg | m s-1 | float32 | -9999 | N/A | 1 | 0 |
| AvgSurfT_tavg | AvgSurfT_tavg | K | float32 | -9999 | N/A | 1 | 0 |
| CanopInt_tavg | CanopInt_tavg | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| ECanop_tavg | ECanop_tavg | kg m-2 s-1 | float32 | -9999 | N/A | 1 | 0 |
| ESoil_tavg | ESoil_tavg | kg m-2 s-1 | float32 | -9999 | N/A | 1 | 0 |
| EvapSnow_tavg | EvapSnow_tavg | kg m-2 s-1 | float32 | -9999 | N/A | 1 | 0 |
| Evap_tavg | Evap_tavg | kg m-2 s-1 | float32 | -9999 | N/A | 1 | 0 |
| GWS_tavg | GWS_tavg | mm | float32 | -9999 | N/A | 1 | 0 |
| lat | lat | degrees_north | float32 | -9999 | N/A | 1 | 0 |
| lon | lon | degrees_east | float32 | -9999 | N/A | 1 | 0 |
| Lwnet_tavg | Lwnet_tavg | W m-2 | float32 | -9999 | N/A | 1 | 0 |
| Qg_tavg | Qg_tavg | W m-2 | float32 | -9999 | N/A | 1 | 0 |
| Qh_tavg | Qh_tavg | W m-2 | float32 | -9999 | N/A | 1 | 0 |
| Qle_tavg | Qle_tavg | W m-2 | float32 | -9999 | N/A | 1 | 0 |
| Qsb_tavg | Qsb_tavg | kg m-2 s-1 | float32 | -9999 | N/A | 1 | 0 |
| Qsm_tavg | Qsm_tavg | kg m-2 s-1 | float32 | -9999 | N/A | 1 | 0 |
| Qs_tavg | Qs_tavg | kg m-2 s-1 | float32 | -9999 | N/A | 1 | 0 |
| SnowDepth_tavg | SnowDepth_tavg | m | float32 | -9999 | N/A | 1 | 0 |
| SnowT_tavg | SnowT_tavg | K | float32 | -9999 | N/A | 1 | 0 |
| SoilMoist_P_tavg | SoilMoist_P_tavg | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| SoilMoist_RZ_tavg | SoilMoist_RZ_tavg | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| SoilMoist_S_tavg | SoilMoist_S_tavg | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| SWE_tavg | SWE_tavg | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| Swnet_tavg | Swnet_tavg | W m-2 | float32 | -9999 | N/A | 1 | 0 |
| time | time | days since 2003-02-01 00:00:00 | float64 | N/A | N/A | N/A | N/A |
| time_bnds | time_bnds | N/A | float64 | N/A | N/A | N/A | N/A |
| TVeg_tavg | TVeg_tavg | kg m-2 s-1 | float32 | -9999 | N/A | 1 | 0 |
| TWS_tavg | TWS_tavg | mm | float32 | -9999 | N/A | 1 | 0 |