Threeway error analysis between aatsr, amsre, and in situ. Erddap sst, aqua amsre, near real time, global, 20022011. This data set contains sea surface temperature sst data on a monthly 1 degree grid from the advanced microwave scanning radiometer amsr e aboard nasas aqua spacecraft. Pathfinder avhrr was chosen because of good agreement with the in situ data. Amsr e ended data collection in october 2011 due to. Determining the amsre sst footprint from colocated. Flow chart outlining the data processing procedures and analyses used in this study. Sea surface temperatures influence weather, including hurricanes, as well as plant and animal life in the ocean.
Smoothed and extended amsr e results the sst performance is strongly dependent on sst and wind speed. Thredds download these data are available through a variety of services via a thredds thematic realtime environmental distributed data services data server tds. Pdf determining the amsre sst footprint from colocated. Remote sensing systems distributes the data in high spatial and temporal daily, weekly, monthly resolutions for both daytime and nighttime averages. Advanced microwave scanning radiometer 2 amsr2 note. Because the heat capacity of sea water is very large the sst might not change significantly during a tenday period abe 1984. Since one month after the aqua launch, amsre observation data has been. Retrieval of sea surface temperature from amsre and modis. This means if mw data are missing, the mw oi sst values will be exactly the data from the day before. Daac drive offers file navigation and download through an interface served directly through your browser, and with a familiar look and feel. A combined modis amsre sst composite product was developed using the ghrsst l2p data set and an enhanced algorithm to reduce latency and improve the quality and accuracy of the sst data for. This data set contains sea surface temperature sst data on a monthly 1 degree grid from the advanced microwave scanning radiometer.
Regarding data acquired from the advanced microwave scanning radiometer amsr e aboard the us earth observation satellite aqua, the national space development agency of japan nasda began to distribute the high level products including sea surface temperature, water vapor and so on to the general users on september 19, 2003, followed by the part of the basic products. The daily and monthly amsr e sst, atmospheric total water vapor, and wind speed for the period january 2003 through december 2004 were used in the present study. Users are notified of readiness of data download via email. It also shows the relatively small seasonal variation in sea surface temperature over the globe relative to land temperatures. Erddap sst, aqua amsre, near real time, global, 2002. We have identified a potential irregularity in the amsr u2 snow water equivalent data set. In this way the spatial structure observed in the 1km modis data is preserved in the compositing process. Amsre is a partnership, with a jaxa instrument carried on a nasa satellite.
Sea surface temperature product retrieved by using 10 ghz channel of the gpm microwave imager on board the gpm. Three way validation of modis and amsre sea surface. An assessment of the accuracy of the amsre sst measurements in the southern ocean is given by dong et al. Noaa7, 9, 11, 14, 16avhrrarctic seasonal temperature trends 19822002 aqua amsr e sea surface temperature 2008 note. This dataset provides a high quality climate data record cdr of sea surface temperature. Citeseerx threeway error analysis between aatsr, amsre.
Now you dont have to have a big supercomputer and a system administrator to figure out how to download, store, and access the data, gentemann said. The other is the representativeness of drifting buoy measurements. A group for high resolution sea surface temperature ghrsst level 4 sea surface temperature analysis produced daily on an operational basis by the jpl ourocean group using a multiscale twodimensional variational ms2dvar blending algorithm on a global 0. Determining the amsre sst footprint from colocated modis ssts. The amsre instrument continues to function, but with extremely reduced capability. February 27, 2019 noaa oceanwatch provides sea surface temperature sst products derived from microwave sensors, which can measure ocean temperatures even in the presence of clouds. We have processed data from all these instruments to provide the typical rss microwave radiometer ocean measurement product suite consisting of. Standard amsre data sets national snow and ice data center. Sea surface temperature is the temperature of the top millimeter of the oceans surface. With its cloudpenetrating ability, amsr e provides a unique dataset to determine the antarctic pf location.
Assessment of the modis and amsrederived sst products. A group for high resolution sea surface temperature ghrsst level 4 sea surface temperature analysis produced as a retrospective dataset four day latency and nearrealtime dataset one day latency at the jpl physical oceanography daac using wavelets as basis functions in an optimal interpolation approach on a global 0. Measurements are gathered by japans advanced microwave scanning radiometer amsr e instrument, a passive radiance sensor carried aboard nasas aqua spacecraft. The combined amsr e and avhrr product begins with the start of amsr data in june 2002 and ends in october 2011, when the amsr e instrument ceased to function properly. Comparative analysis in the arctic ocean shows that the amsr e ssts are consistent with those from infrared and buoy data.
Optimal estimation of sea surface temperature from amsre mdpi. Noaa highresolution sea surface temperature sst analysis. While we identify the data sets used in these visualizations, we do not store any further details nor the data sets themselves on our site. Multiscale ultra high resolution mur sea surface temperature sst. Amsr e data file names include a product maturity code such as b01, t02, or v03 to indicate which version of the algorithm was used to produce the data. Over the ocean, amsre provides sea surface temperatures sst through cloud cover of no. Multiscale ultra high resolution mur sea surface temperature sst data from june 2002 to present are available in the cloud. The sampling is not globally homogeneous because of missing sst data, primarily due to rain.
The instrument has an inclined conical scan that enables it to make observations of the surface from two different anglesnadir and. Aatsr has three infrared channels centered in the atmospheric windows at 3. The distribution of collocations is a combination of where the modis and amsr e data are both present, and this is reflected by the higher number of collocations in. A sea surface temperature anomaly is how different the ocean temperature at a particular location at a particular time is from the normal temperatures for that place. Anne ocarroll 1, john eyre 1, and roger saunders 1 1 met office, satellite applications, fitzroy road, exeter, devon ex1 3pb, united kingdom. The combined amsre and avhrr product begins with the start of amsr data in june 2002. They found that, when compared with moderate resolution imaging spectroradiometer modis and reynolds optimal interpolation oi ssts, amsre.
The daily amsre ssts do not cover the global oceans fig. Erddap oisstv2avhrramsr daily 14 degree by time, depth. Microwave sst single sensor error statistics pdf free download. Esacci to retrieve subskin sea surface temperature sst from aquas advanced microwave scanning radiometerearth observing system amsre.
Microwave oi sst product description remote sensing systems. The current version of the rss radiative transfer model and radiometer processing code is version7. These mur sst data are optimized so that researchers can do largescale analyses in the cloud. Modis scans directly downward while amsr e scans forward at a 55 angle, leading to an 1. The amsr e microwave radiometer measurements are the first data to show ssts for the entire southern ocean with twicedaily temporal resolution. Advanced microwave scanning radiometer 2 amsr2 earthdata.
Displaying these highresolution data with a common color scale makes evident the large difference between surface heating on land versus the sea. Nasas advanced microwave scanning radiometereos amsr e. This page provides details of the processing and algorithm history for all versions of amsre data products. The nasa national snow and ice data center distributed active archive center nsidc daac archives and distributes daily, weekly, and monthly level1a, level2a, level2b, and level3 data products from the advanced microwave scanning radiometer earth observing system amsr e sensor on nasas aqua satellite. The modis and amsr e sst data sets are ideal for this triple collocation analysis because both operate on the aqua satellite, so the sst retrievals are virtually simultaneous. The daily amsr e ssts do not cover the global oceans fig. Microwave sst single sensor error statistics pdf free. Highresolution sea surface temperature data available in the. Improving the amsrenasa soil moisture data product using insitu measurements from the tibetan plateau. Highresolution sea surface temperature data available in. Browse and download imagery of satellite data from nasas earth observing system. Ghrsst level 4 g1sst global foundation sea surface.
Dynamic gis mapping application to locate and download data. Pdf threeway error analysis between aatsr, amsre, and in. The data set does not include separate uncertainty estimates or quality flags. Version 7 amsr e ssts has enhanced rain flagging to minimize this occurrence. To produce the daily sst map for day0, the amsr e ssts for the days before and after day0 are used together with the ssts for day0 fig. Sst, aqua amsr e, near real time, global, 20022011 14 day composite metadata updated. More information on regional ocean synthesis and further information on some global products are provided at the copernicus marine environment monitoring service cmems links to the project web pages and access to monthly mean data. Like earths land surface, sea surface temperatures are warmer near the equator and colder near the poles. Sst, aqua amsr e, near real time, global, 20022011 1 day composite. Using colocations of three different observation types of sea surface temperatures ssts gives enough information to enable the standard deviation of.
An anomaly is when something is different from normal, or average. Microwave sst data deconvolution also requires incorporation of the footprint to meet. The noaa 14 degree daily optimum interpolation sea surface temperature or daily oisst provides complete ocean temperature fields constructed by combining biasadjusted observations from different platforms satellite, ships, buoys on a regular global grid, with gaps filled in by interpolation. Sea surface temperature anomaly 1 month aquaamsre, 2002. Soil moisture data national snow and ice data center. These data demonstrated how throughcloud sst measurements offer unique opportunities for research into airsea interactions, improved coverage in persistently cloudy regions, and could improve the existing operational sst products 6,7.
Jaxa publication of higher level products of amsre. The data were produced by remote sensing systems in support of the cmip5 coupled model intercomparison project phase 5 under the world climate research program wcrp. To produce the daily sst map for day0, the amsre ssts for the days before and after day0 are used together with the ssts for day0 fig. Data access oisst national centers for environmental. Sst, aqua amsr e, near real time, global, 20052011 monthly composite. The distribution of collocations is a combination of where the modis and amsre data are both present, and this is reflected by the higher number of collocations in. Amsr e and avhrr with coverage from june 2002 through october 2011, when the amsr e instrument ceased to function properly. At the edges of rain cells, there may be undetected rain that causes a biased sst retrieval. Those input datasets include the nasa advanced microwave scanning radiometereos amsr e, the jaxa advanced microwave scanning radiometer 2 amsr 2 on gcomw1, the moderate resolution imaging spectroradiometers modis on the nasa aqua and terra platforms, the us navy. The temporal resolution of modis sst data is eightday, and that of amsr e sst data is daily. Monthly mean map of amsre ssts c for july 2003 averaged to 1 spatial resolution. Optimal estimation of sea surface temperature from amsre. An assessment of the accuracy of the amsr e sst measurements in the southern ocean is given by dong et al.
Both measurement types have been bias corrected, leading to a nearzero difference. Amsre level 3 sea surface temperature for climate model. Daily browse imagery for the tmi, amsr e, amsr 2, windsat, or gmi instrument products can show the observations available on any given day that are incorporated into the daily oi sst products. To study this dependence, we bin the collocated results by wind speed and sst and calculate the statistics in each bin. The geophysical parameters measured by amsr e include sst, atmospheric total water vapor, cloud water, wind speed, and rain rate. Oisstv2avhrramsr daily 14 degree by time, depth, latitude, longitude. This animation portrays a 3day moving average of amsre sea surface temperature sst over the western hemisphere from the beginning of 2005 to early december, 2006. Currently, the amsr e and ostia are given a weight of around 20% relative to the modis data. Upon successful submission, you will receive a confirmation e mail in your inbox. Data quality this sst data has been compared to buoy observations, shipbased observations and the reynolds sst. Sea surface temperature in arctic ocean from 2002 to 2009.
Mar 17, 2007 this animation portrays a 3day moving average of amsr e sea surface temperature sst over the western hemisphere from the beginning of 2005 to early december, 2006. In addition, seasonal modis land cover shows the advance and retreat of snow over the northern hemisphere. Threeway error analysis between aatsr, amsre, and in. Using griddap to request data and graphs from gridded datasets griddap lets you request a data subset, graph, or map from a gridded dataset for example, sea surface temperature data from a satellite, via a specially formed url. Ncei direct download download direct download links for dataset files.
Mar 05, 2020 making these data freely available in the cloud is part of a larger effort by esds to enable researchers and commercial data users to access and work with large quantities of data quickly. Land surface temperature data are from the modis sensor on nasas terra satellite while the sea surface temperatures sst are from the advanced microwave scanning radiometer earth observing system amsr e sensor on nasas aqua satellite. Over 50 different global datasets are represented with daily, weekly, and monthly snapshots in a variety of formats. Aatsr was launched upon the sunsynchronous envisat in march 2002. Amsr e now provides global allweather sst measurements. We no longer produce amsre data products after oct 4 2011.
Sea surface temperature from remote sensing systems. Amsre data versions national snow and ice data center. Sea surface temperature and sea ice analysis ostia are incorporated to improve the latency near coastal zones. The esa sst cci project provides two software tools specifically designed to operate on the sst cci data. Sst, aqua amsre, near real time, global, 20022011 1 day. Relationship between albacore thunnus alalunga fishing.
The product maturity code includes both a maturity level p, r, b, t, or v and a twodigit iteration number, such as b06 in the following example file name. Amsr e slow rotation data has been released the amsr e automatically halted its observations and rotation on october 4, 2011 utc due to increased rotation friction. Amsr e is a partnership, with a jaxa instrument carried on a nasa satellite. Location of the antarctic polar front from amsre satellite. Noaa highresolution sea surface temperature sst analysis products. These tools support the regridding of the sst data products to a coarser raster and the regional averaging of data for a selectable time interval. This data is provided at moderate spatial resolution 0. Ocean synthesisreanalysis directory the following list provides basic information on the available global ocean syntheses and some regional ocean syntheses.
The original brightness temperature data of the polarization channels from amsr e l2a and the original modis l1b thermal infrared data were preprocessed firstly, and then the retrieval model of amsr e sst was built on the multiparameters linear regression, which based on the correlation of the amsr e brightness temperature and the in situ sea. Dataset overview national centers for environmental. Does amsr2 produce better soil moisture retrievals than amsre. This archive covers two high resolution sea surface temperature sst analysis. Retrieval of sea surface specific humidity based on amsre. The data can be downloaded directly or accessed via thematic realtime environmental distributed data services thredds. Erddap amsre model output, obs4mips nasajpl, global, 1. After then nasa and jaxa began to analyze the situation and had been seeking for the way to restart amsr e observation. Amsr e data are valuable for monitoring sst changes in the global oceans, including the arctic ocean, because of unique coverage during cloudy conditions. It also allows users to access data via a command line so that interactions can be easily scripted. The objectives of the experiments were to provide data sets for studies of hydrologic processes and landatmosphere interactions, validate spaceborne soil moisture measurements such as from the amsr e instrument, and evaluate new instrument technologies. Anne ocarroll 1, john eyre 1, and roger saunders 1 1 met office, satellite applications, fitzroy road, exeter, devon ex1 3pb, united kingdom abstract using colocations of three different observation types.