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Tuesday, April 21, 2020 | History

2 edition of Atlas of monthly Palmer moisture anomaly indices (1895-1930) for the contiguous United States found in the catalog.

Atlas of monthly Palmer moisture anomaly indices (1895-1930) for the contiguous United States

Thomas Karl

Atlas of monthly Palmer moisture anomaly indices (1895-1930) for the contiguous United States

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Published by National Climatic Data Center in Asheville, N.C .
Written in English

    Subjects:
  • Moisture -- United States -- Maps,
  • Droughts -- United States -- Maps,
  • Precipitation variability -- United States -- Maps

  • Edition Notes

    Other titlesPalmer moisture anomaly indices (1895-1930)
    StatementThomas R. Karl, Richard W. Knight
    SeriesHistorical climatology series -- 3-8
    ContributionsKnight, Richard W, National Climatic Data Center (U.S.)
    The Physical Object
    Paginationxii, 1, [216] p. :
    Number of Pages216
    ID Numbers
    Open LibraryOL13610596M

      This study proposes a simple methodology for assessing future-projected evolution of water cycle components (precipitation, potential evapotranspiration, and potential runoff) based on the two-level Palmer model of the soil and their impact on drought conditions at basin level. The Palmer Drought Severity Index (PDSI) is used as drought metric. The catchments of rivers Arges, Mures, Prut Cited by: 1.   Harmonised in situ data on soil moisture are not available across the EU. Modelled soil moisture content has significantly decreased in the Mediterranean region and increased in parts of northern Europe since the s, as a result of past warming and precipitation changes. Significant decreases in summer soil moisture content in the Mediterranean region and increases in north . Based on the Palmer Drought Index, severe to extreme drought affected less than 1 percent of the contiguous United States as of the end of February , about the same as last month. About 37 percent of the contiguous U.S. fell in the severely to extremely wet categories.; About 9 percent of the contiguous U.S. fell in the moderate to extreme drought categories (based on the Palmer Drought. the Z index determines drought on a monthly scale. It can detect drought. Crop Moisture Index (CMI) CMI is a derivative of PDSI which was developed from moisture accounting procedures as the function of the evapotranspiration anomaly and the moisture excesses.


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Atlas of monthly Palmer moisture anomaly indices (1895-1930) for the contiguous United States by Thomas Karl Download PDF EPUB FB2

Atlas of monthly Palmer Moisture Anomaly Indices () for the contiguous United States. Ashville, N.C.: National Climatic Data Center, [] (OCoLC) Material Type: Atlas, Government publication, National government publication: Document Type: Map, Book: All Authors /.

Get this from a library. Atlas of monthly Palmer moisture anomaly indices () for the contiguous United States. [Thomas Karl; Richard W Knight; National Climatic Data Center (U.S.)]. Atlas of Monthly Palmer Moisture Anomaly Indices – for the Contiguous United States. Historical Climatic Series 3–9.

Asheville, NC: NOAA, National Climatic Data Center. Google Scholar. Atlas of monthly Palmer moisture anomaly indices () for the contiguous United States / By Thomas Karl, Richard W Knight and National Climatic Data Center (U.S.).

National Oceanic and Atmospheric Administration, National Climatic Data Center, Atlas of Monthly Palmer Moisture Anomaly Indices – for the Contiguous United States, Historical Climatic Series 3–9. Asheville, N.C.: NOAA, National Climatic Data Center.

Google Scholar. Monthly maps of drought conditions in the contiguous U.S. as measured by the Palmer Drought Severity Index, Palmer Hydrological Drought Index, Palmer Modified Drought Index, and Palmer Z-Index (Palmer, ) are provided for January —January Animations of any set of Atlas of monthly Palmer moisture anomaly indices book maps for any period desired can be viewed by selecting the.

The Palmer Drought Severity Index (PDSI) uses readily available temperature and precipitation data to estimate relative dryness. It is a standardized index that generally spans (dry) to +10 (wet).

Maps of operational agencies like NOAA typically show a range of -4 to +4, but more extreme values are possible. Crop Moisture Index Map: depiects short-term (up to 4 weeks) abnormal dryness or wetness affecting agriculture. Data Tables: home page Atlas of monthly Palmer moisture anomaly indices book the Palmer Drought Severity and Crop Moisture Indices.

Crop Moisture Index map: depiects short-term (up to 4 weeks). The monthly moisture anomalies are then converted into the indices of moisture anomaly by multiplying by a weighting factor. Finally, dryness or wetness severity is deduced from the moisture anomaly index and the PDSI of the previous month.

Theoretically, PDSI is a standardized measure, ranging from about − to +Cited by: Karl, T.R. and Knight, R.W., Atlas of Monthly Palmer Hydrological Drought Indices (–) for the Contiguous United States, Historical Climatology Series 3–7.

Ashville, NC: National Climatic Data Center. Google Scholar. The first quantity calculated for estimation of the PDSI-index is the moisture departure (Palmer,Alley, ).

(3) where Pj is the monthly precipitation total and is the so called Atlas of monthly Palmer moisture anomaly indices book Appropriate for Existing Conditions (CAFEC) for the j th month, and dj is the moisture departure for j th by: A parameter obtained from the calculations is the monthly moisture anomaly (Z) index which is the product of the moisture departure of the most recent 4 weeks and a climate weighting factor.

This index can be used as an indicator of forest fire ignition. Climate Prediction Center (CPC) Palmer Drought Severity and Crop Moisture Indices are computed for the U.S. Climate Divisions on a weekly basis based on a minimum of the previous 4 weeks (1 month) of observed temperatures and h Year: Therefore, more recently, the soil moisture index (SMI) (Sridhar et al.,Hunt et al., ) and the soil water Atlas of monthly Palmer moisture anomaly indices book index (SWDI) (Martnez-Fernndez et al., ) were proposed as alternative agricultural drought indices and are based on the actual soil moisture content and known field capacity and wilting point at each Atlas of monthly Palmer moisture anomaly indices book Z-Index, Palmer moisture anomaly index (Z-index) PMDI, Palmer Modified Drought Index; PNP, Percentage of Normal Precipitation; This Python implementation of the above climate index algorithms is being developed with the following goals in mind: to provide an open source software package to compute a suite of climate indices commonly used for.

For example, to calculate the current value of X i, times the previous PDSI value X i−1 is added to one-third of the current moisture anomaly Z called the values and 1/3 the duration factors. They were empirically derived by Palmer from two locations (western Kansas and central Iowa) and affect the sensitivity of the index to precipitation by: Currently used drought indices like the Palmer Drought Severity Index (PDSI) and Standardized Precipitation Index (SPI) have coarse spatial (–, km 2) and temporal resolution (monthly).

Hence, the distributed hydrologic model SWAT was used to simulate soil moisture and evapotranspiration from daily weather data at a high spatial Cited by: Empirical orthogonal function analysis of the Palmer Drought Indices Article (PDF Available) in Agricultural and Forest Meteorology (7) July with Reads How we measure 'reads'.

The Palmer Drought Severity Index (PDSI) and Crop Moisture Index (CMI) are indices of the relative dryness or wetness affecting water sensitive economies.

The data is provided in graphical and tabular formats, for the contiguous United States. Topsoil Moisture Maps - The CPC produces top soil maps based on the USDA data. Subsequently, Palmer () related the drought severity for a given month to the weighted sum of the moisture anomaly index of that month and the drought severity of the previous month.

These latter weighting factors, termed the “duration factors,” determine the balance in the PDSI between sensitivity to short-period moisture fluctuations Cited by: In order to study the 20th century spatial and temporal changes of soil moisture content, time series of the palmer drought severity index (PDSI) (Palmer, ), which are based on meteorological and soil moisture content data, were analysed by several variable by: Atlas of monthly Palmer Hydrological Drought Indices () for the contiguous United States.

Ashville, N.C.: National Climatic Data Center, [] (OCoLC) by K is called the moisture anomaly index, or the Z index, and is denoted by Z, shown as Z 5 dK. (3) The Z index can be used to show how wet or dry it was during a single month without regard to recent pre-cipitation trends.

The Z index is used to calculate the PDSI value for a given month using the general formula: 1 Xii5 X 21 1 12Zi. (4) 3. The index previously widely used in the United States is the Palmer Drought Severity Index (PDSI) [e.g., Palmer, ; Karl and Knight, ; Heddinghaus and Sabol, ], which is based on the anomalies of the supply and demand components in the water balance equation.

In addition to precipitation, the PDSI also needs to use temperature and Cited by: The Palmer Drought Severity Index (PDSI) is routinely made available by NOAA for operational use, and it has also been calculated across the United States on a historical basis back to (Karl et al., ).Traditionally, the coefficients used in the calculation of the PDSI have been based on an anomalously hot and dry period across much of the United States (–60).Cited by: Dai Palmer Drought Severity Index Monthly gridded global PDSI (Palmer Drought Severity Index) values from from NCAR.

Catalog: GFS Model Output A dataset of historical weather forecasts generated with a fixed numerical model. Daily forecasts are comprised of a 15 day, member ensemble and include surface and pressure level variables.

N/A. The Palmer four indices (PDSI, Weighted PDSI, PHDI and the moisture anomaly Z-index) were used as indicators of meteorological drought severity. The hydrological drought severity was evaluated from the outputs of the monthly UTHBAL conceptual water balance by: Karl, T.R. and Knight, R.W.

() Atlas of Monthly Palmer Hydrological Drought Indices (–) for the Contiguous United States, National Climatic Data Center Historical Climatology Series 3–7, Asheville, NC, p. Google ScholarCited by: Monthly Composites; Monthly/Seasonal Climate Composites.

Plot seasonal composites (averages) of the mean or anomalies (mean - total mean) of variables from the NCEP reanalysis and other datasets. Note the climatology used for the anomaly and long term mean plots is now to match the new climate normal timeperiod. of moisture to and from the layers based on limited data from the central United States (Palmer ; Heim ).

The Palmer model also computes, as an inter-mediate term in the computation of the PDSI, the Palmer moisture anomaly index (Z index), which is a measure of surface moisture anomaly for the current month with. HOME > Monitoring & Data > U.S. Soil Moisture Monitoring > Soil Moisture: A series of maps showing most recent day, monthly and 12 months calculated soil moisture, anomalies and percentiles; year average soil moisture & soil wetness that are used in the soil moisture outlook.

Soil Moisture. Most Recent Day; Most Recent Month. Atlas of Monthly Palmer Hydrological Drought Indices (–) for the Contiguous United States. Historical Climatology Series 3–7, National Climatic Data Center, Asheville, North Carolina. The p and q coefficients in are called duration factors, which determine how sensitive the PDSI is to the monthly moisture anomaly Z t and how much autocorrelation the PDSI has.

Palmer [] derived the values of p = and q = 1/3 using the linear slope between the length and severity of the most extreme droughts that he studied in Kansas Cited by: Technical Memorandum NWS Hy Five to minutes Precipitation Frequency for Eastern and Central United States ().

Technical Pa Rainfall Frequency Atlas of the United States for Durations from 30 minutes to 24 Hours and Return Periods from 1 to Years (). HOME > Land Surface Monitoring and Prediction > Global Monitoring (Soil Moisture) Monthly Global Soil Moisture (mm) Move cursor over date link or click link to display the graphic.

NCEI's land-based (in situ) datasets are developed from data collected across the United States and availability varies by data type and station, and some have periods of record of more than a century. Any data product ordered from NCEI may be certified for court, but only the more commonly certified products can be certified for court online.

Palmer WC () Keeping track of crop moisture conditions, nationwide: the new Crop Moisture Index. Weatherw – Pickup G () A simple model for predicting herbage production from rainfall in rangelands and its calibration using remotely sensed data.

Journal of Cited by:   The effect of climate change on the frequency and intensity of droughts across the contiguous United States over the next century is assessed by applying Standardized Precipitation Indices and the Palmer Drought Severity Index to the full suite of 22 Intergovernmental Panel on Climate Change General Circulation Models for three IPCC-SRES emissions scenarios (B1, A1B, and A2 from Cited by: Monthly Surface Temperature SST Precipitation Land Ocean Multi-level Radiation Arctic Reanalysis Climate Indices Search Datasets 20th Century Reanalysis Popular Datasets ICOADS NCEP/NCAR Reanalysis N.

American Regional Reanalysis Plotting & Analysis Basic Plots Analysis Tools Access FTP Access OPeNDAP Access Software Resources Complete Data. Karl, T.R. and Knight, R.W. () Atlas of Monthly Palmer Hydrological Drought Indices () for the Contiguous United Stated, Historical Climatology Series 3 - 7, National Climatic Data Centre, Asheville, N.C.

Google ScholarCited by:. Downloadable (with restrictions)! This pdf estimates hydrological drought characteristics using a water balance pdf drought index in Pinios river basin, Thessaly, Greece.

The concept of hydrological management at subwatershed scale has been adopted because it encompasses the areal extent of a drought event. Fourteen (14) sub-watersheds of Pinios river basin were delineated according to.where I m is the moisture index, download pdf the water surplus, d the water deficiency, and n the water need.

The calculation of s and d is made on a normal month-to-month basis, with s being the total surplus from all months having a water surplus, and d the total of all monthly deficiencies; each is represented by the difference between monthly precipitation and monthly potential evapotranspiration.Ebook model-based Palmer indices for drought characterization in the Yellow River basin, China Article (PDF Available) in Stochastic Environmental Research and Risk Assessment 30(5) July.