CSSS Viewer - Everglades Depth Estimation Network (EDEN)

Cape Sable Seaside Sparrow (CSSS) Viewer

Monitoring water depths in CSSS habitats A through F

The endangered Cape Sable seaside sparrow (CSSS) (Ammodramus maritima mirabilis) is one of eight remaining subspecies of seaside sparrow. The CSSS once ranged throughout freshwater and brackish marsh habitats in southern Florida; the current known distribution is restricted to six separate subpopulation areas (A through F) in Everglades National Park. Changes in habitat and hydrology threaten the CSSS with extinction, and efforts by regulatory and water-management agencies to protect and increase populations have been of limited success. The sparrows build their nests on the ground and up to 17 centimeters above the ground in mixed marl prairies. To increase nesting success, these short-hydroperiod prairies must remain mostly dry during the nesting season (March through July). Previously, a single water-level gage was used to estimate water depths in one or more subpopulation areas. Recently, several water-level gages used to estimate water depths in CSSS habitats were discontinued following a reduction in funding. An alternative and improved method for estimating and evaluating water depths was needed.

The Everglades Depth Estimation Network (EDEN) provides daily water-level and water-depth surfaces for the freshwater Everglades for the period 1991 to current. The CSSS Viewer was developed to use these surfaces to estimate and evaluate water levels and water depths in CSSS habitat on a real-time basis. An animated viewer shows flooded areas and calculates 1) the percent area that is dry, 2) the percent area having water depth less than or equal to 17 centimeters of water, and 3) the percent area that has been dry for 90 days for more (baby birds are fledged from the nest in about 90 days), each day by subpopulation areas. Wildlife-resource scientists and managers can use the CSSS Viewer to assess impacts on nesting success and develop management strategies for the future. Water-control managers can use these results to manage movement of water through water-control structures and, when possible, reduce flooding in these areas during the nesting season. This application of the EDEN water-level and water-depth data demonstrates how scientists and resource managers can use EDEN to analyze the effects of water management practices on vulnerable species in the Everglades.

Please send any questions or comments to the EDEN Data Help.

Using the Cape Sable Seaside Sparrow (CSSS) Viewer

The CSSS Water-Depth Maps contain daily water depth based on the daily EDEN water-level surfaces, which are generated each day using water-level gage data, and ground elevation data. Water-depth values are displayed in both centimeters and inches (relative to North American Vertical Datum of 1988 (NAVD 88)). The data is served using the same 400 meters by 400 meters grid as other EDEN data. See details below ("Quality water-level data used to generate the daily water-level surfaces") about the daily water-level surfaces based on the quality of the water-level gage data.

From the Water-Depth Map tab:

Water-depth data
1. Water-depth value ranges have been pre-selected for this version.
2. To set the water-depth transparency level, move the slider from left (full transparency) to right (no transparency).
Setting data range
1. Time periods have been pre-selected based on anticipated user needs for this version.
2. To change dates, select the data range from the top drop down box.
3. Once the time period is selected, the maps begin to load into the viewer. The status of the loading process is displayed in the bottom left of the viewing window ("Loading image..."). All of the daily maps are viewable when the status is 'Loaded'.
Animation of daily maps
1. The map view can be animated using the arrow button which toggles the animation on and off.
2. The Time range slider allows users to move quickly between maps without using the animation button.
Ground elevation data
1. The ground elevation allows users to see the topography of dry areas.
2. To set the ground elevation transparency level, move the slider from left (full transparency) to right (no transparency).
Four-year hydroperiod mean and standard deviation
1. The four-year hydroperiod allows users to see the mean and standard deviation of annual hydroperiods. Mean four-year hydroperiod for a named year is the average yearly days where the water level is >0 for the previous four years (e.g., 2017 mean four-year hydroperiod is the mean of 2013-2016). Standard deviation is of the mean of those four years.
2. To set the hydroperiod transparency level, move the slider for water depths from right (no transparency) to left (full transparency) and the slider for the hydroperiods from left (full transparency) to right (no transparency).
3. You may step through the annual hydroperiod means or standard deviations using the left and right arrows.
Locations of nearby water-level gages
1. Gages will display on the viewer by checking the box next to "show gages." Deselecting the box will remove the gage markers.
2. Current hydrographs at each gage can be viewed by clicking the gage pin on the map.
  - The hydrographs are those used for the Daily Water Level Percentiles by Month monitoring application
Subpopulation area daily statistics
1. Several computations by subpopulation area are computed and displayed by clicking the boxes next to the items listed below. More information about these computations can be found by clicking on the linked text for each item. NOTE: Portions of subpopulation areas B, C, and D are outside the EDEN model domain. The percentage of area computations includes only the subpopulation areas within the EDEN model domain. A CSV file of the subpopulation area statistics used in this application can be downloaded here.
  - % dry area is the percent of the subpopulation area where water levels are below ground for the selected day
  - % WD ≤ 17 cm is the percent of the subpopulation area where water depths are less than or equal to 17 centimeters for the selected day
  - % dry ≥ 40 days is the percent of the subpopulation area where water levels have been below land surface for the last 40 consecutive days
  - % dry ≥ 90 days is the percent of the subpopulation area where water levels have been below land surface for the last 90 consecutive days
  - mean water depth is the average cm water depth of the pixels of the subpopulation area. Graphs of the subpopulation mean water depths are available for the previous year, wet season, dry season, month, and week.
  - water depth sd is the standard deviation of the cm water depth of the pixels of the subpopulation area
Zooming and Panning
1. The map view can be zoomed in and out as well as panned using several methods
  - clicking on the "+" and "-" buttons in the upper-right of the map will zoom in or zoom out
  - double-clicking the map will zoom in to that location
  - clicking and holding the left mouse button allows you to move the map
  - the arrow keys on the keyboard allows you to move around the map
  - computer mice equipped with mouse wheels can use the wheels to zoom in and out
Display date — the date of the map displayed is shown in the bottom right of the display window

Quality water-level data used to generate the daily water-level surfaces:

Water-level surfaces for the most recent quarter are based on real-time gage data. Real-time water-level data for the gages are transmitted daily by satellite or other telemetry and have received little or no review from the operating agency. The EDEN team uses the ADAM software to quality-assure the data and estimate missing data. Subsequent reviews and edits of the data may result in significant revisions to the data.
Water-level surfaces for all previous quarters in the current water year (Oct 1 to Sept 30) are based on provisional gage data. Provisional water-level data for the gages are provided on a quarterly basis from the operating agencies and have received some review and edits by them. For some agencies, the review is near final while for others, the review is preliminary. Then, the EDEN team uses the ADAM software to further quality-assure the data and estimate missing data.
Water-level surfaces for the water years prior to the current one are based on final gage data. Final water-level data for the gages are provided on an annual basis from the operating agencies. The EDEN team uses the ADAM software to estimate missing data, if necessary.

(cm)

(in.)

46

18.1

30

11.8

17

6.7

0

Water depth

(cm)

(in.)

400

157

0

Ground elevation (NAVD88)

(days)

(cm)

220.3

-3.9

200.3

-13.9

163

-43.2

138.2

-58.4

Four-year hydroperiod

Mean water depth

(days)

(cm)

56.8

21.7

46.7

19.1

33.7

14.2

26.7

11.1

Four-year hydroperiod SD

Mean water depth SD

Surface water gage

Ground water gage

Nesting Season/Annual Statistics for Subpopulation Areas

Summary statistics for the Cape Sable seaside sparrow subpopulation areas. A CSV file of these statistics used in this application can be downloaded here.

Popup statistics graphs available: click column headings (e.g., "≥ 40") to view.

Nesting Season Statistics: Consecutive dry days

Percent of subpopulation areas dry during nesting season (March 1 through July 15) for at least 40 and 90 consecutive days.

	A Nesting		AX Nesting		B Nesting		C Nesting		D Nesting		E Nesting		F Nesting
Year	≥ 40	≥ 90	≥ 40	≥ 90	≥ 40	≥ 90	≥ 40	≥ 90	≥ 40	≥ 90	≥ 40	≥ 90	≥ 40	≥ 90
1991	87.4%	0%	90.1%	1.4%	100%	32.3%	100%	82.6%	97.2%	19.5%	100%	27.9%	100%	78.8%
1992	56.3%	25.9%	65.7%	41%	95.2%	90.7%	100%	100%	97.6%	80.9%	100%	99.1%	100%	100%
1993	2.9%	0.2%	5.7%	0.4%	78.1%	60.1%	98.7%	97.5%	72.8%	58.5%	91.8%	62.4%	100%	100%
1994	22.9%	3.1%	34.2%	8%	94.6%	73%	96.2%	82.2%	56.5%	22.8%	99.7%	70.2%	100%	100%
1995	0%	0%	0%	0%	70.4%	44.7%	98.7%	89.8%	58.1%	20.3%	46.2%	19.1%	100%	99.3%
1996	21.5%	2.3%	37.1%	9.8%	79.1%	42%	100%	43.2%	88.2%	34.1%	82%	48.9%	100%	86.8%
1997	22.5%	10.5%	34.3%	21.4%	86.5%	55.1%	100%	81.4%	94.3%	70.7%	98.6%	35.4%	100%	100%
1998	27.2%	5.6%	38.2%	8.6%	87.5%	47.5%	98.3%	95.3%	58.1%	17.5%	95.8%	44.7%	100%	100%
1999	37.3%	8%	50.8%	15.2%	100%	71%	100%	100%	100%	72%	100%	79.6%	100%	100%
2000	31.6%	12.8%	46.3%	21.4%	90.2%	73.4%	100%	93.6%	80.1%	50.4%	97.2%	64.6%	100%	100%
2001	84.2%	40.2%	87.6%	53%	100%	99.9%	100%	100%	100%	89.8%	100%	99.4%	100%	100%
2002	72.9%	26.5%	78.7%	42.3%	99.7%	62.3%	100%	100%	100%	71.1%	98.9%	58.8%	100%	100%
2003	38.5%	1.8%	51.7%	6.1%	41.2%	25.5%	96.6%	51.3%	34.6%	24%	64.3%	23.2%	100%	7.3%
2004	52.5%	31.2%	62.7%	46%	100%	92.9%	100%	100%	98.4%	85%	100%	89.3%	100%	100%
2005	57.4%	25.9%	66.6%	41.3%	99.7%	80.7%	100%	100%	78.9%	62.2%	100%	92.9%	100%	100%
2006	55.7%	34.3%	65.2%	48.4%	98.5%	44.4%	100%	92.8%	85.8%	63%	100%	63.2%	100%	100%
2007	28.6%	5.6%	44%	16%	90.4%	36.1%	100%	93.6%	71.5%	22.8%	97.8%	36.5%	100%	100%
2008	63.3%	24%	71.2%	38.4%	100%	70.9%	100%	99.2%	93.9%	31.7%	100%	73.4%	100%	100%
2009	73.4%	15.8%	79.1%	32.1%	100%	65.9%	100%	83.5%	100%	27.2%	100%	16.6%	100%	100%
2010	31.5%	11.2%	45.7%	19.3%	77.9%	58.4%	100%	94.1%	56.1%	32.5%	84.6%	65%	100%	58.9%
2011	73.9%	60.8%	79.5%	69.2%	100%	99.1%	100%	100%	100%	93.5%	100%	100%	100%	100%
2012	55.2%	11.5%	64.9%	20.8%	98.3%	23.4%	100%	6.4%	82.9%	0.8%	99.4%	8.2%	100%	36.4%
2013	37.2%	0.9%	50.7%	2.4%	74.9%	13.4%	100%	7.2%	65.9%	2%	93.4%	0.2%	100%	100%
2014	67.1%	23.1%	74.2%	36.1%	94.9%	68.6%	100%	100%	91.1%	55.7%	99.2%	74.1%	100%	100%
2015	48.1%	33.6%	59.3%	47.9%	96%	30.8%	100%	97.5%	87.8%	6.5%	100%	45.1%	100%	100%
2016	10.7%	4.4%	14.1%	5.7%	69.6%	32.9%	46.6%	3%	11%	3.7%	19.4%	6%	2.6%	0%
2017	52.7%	32.7%	62.8%	47.2%	79.8%	69.5%	100%	100%	76%	62.6%	92.3%	79%	100%	100%
2018	47.1%	0.6%	58.4%	1.5%	78.7%	18.4%	100%	12.3%	77.2%	5.7%	85.6%	5.5%	100%	78.8%
2019	31%	19.2%	45.8%	34.1%	62.6%	55.5%	100%	100%	61.4%	41.1%	87.6%	79.9%	100%	100%
2020	67.9%	24%	74.8%	35.4%	87.3%	24.5%	100%	16.1%	80.5%	14.2%	100%	26.5%	100%	10.6%
2021	61.3%	28.6%	69.2%	36.9%	80.4%	41.1%	100%	25.8%	71.5%	31.3%	79.6%	27%	100%	87.4%
2022	23.4%	9.7%	30.9%	13.8%	45.9%	34.5%	97%	19.1%	43.9%	11%	32.6%	7.1%	100%	43%
2023	29.7%	1.2%	37.8%	3.6%	79.3%	17.6%	93.2%	54.2%	38.6%	0.8%	41.7%	14.9%	96.7%	9.3%
2024	5.3%	0%	6.9%	0%	36.7%	5.1%	88.6%	3.8%	8.1%	0%	7.1%	0%	80.8%	0%
2025	57%	33.2%	61.5%	41.4%	89%	30.9%	100%	77.5%	82.9%	22.8%	76.6%	26.5%	100%	100%

Annual Statistics: Non-consecutive hydroperiod

Percent of subpopulation areas with discontinuous hydroperiods during the calendar year of 0 to 89, 90 to 210, and > 210 days.

	A Annual			AX Annual			B Annual			C Annual			D Annual			E Annual			F Annual
Year	0 to 89	90 to 210	≥ 211	0 to 89	90 to 210	≥ 211	0 to 89	90 to 210	≥ 211	0 to 89	90 to 210	≥ 211	0 to 89	90 to 210	≥ 211	0 to 89	90 to 210	≥ 211	0 to 89	90 to 210	≥ 211
1991	0%	11.6%	88.4%	0%	24.8%	75.2%	27.4%	50.7%	21.9%	91.9%	8.1%	0%	12.6%	57.7%	29.7%	35.7%	59.4%	4.9%	94.7%	5.3%	0%
1992	0%	22.6%	77.4%	0%	38.4%	61.6%	26.8%	56.9%	16.4%	91.5%	8.5%	0%	32.9%	44.3%	22.8%	32.6%	67.2%	0.2%	100%	0%	0%
1993	0%	0.2%	99.8%	0%	0.6%	99.4%	34.8%	26.9%	38.3%	44.1%	54.7%	1.3%	8.5%	52.4%	39%	31.2%	34.5%	34.3%	92.7%	7.3%	0%
1994	0%	2.1%	97.9%	0%	6.9%	93.1%	20.9%	52.2%	26.9%	16.1%	80.1%	3.8%	3.7%	51.6%	44.7%	4.9%	75.4%	19.7%	68.2%	31.8%	0%
1995	0%	0%	100%	0%	0%	100%	6.4%	31.2%	62.4%	8.5%	50%	41.5%	0%	5.7%	94.3%	0%	5.5%	94.5%	49.7%	27.2%	23.2%
1996	0%	0.1%	99.9%	0%	0.2%	99.8%	32.8%	27%	40.1%	57.2%	41.5%	1.3%	5.7%	52.4%	41.9%	17.4%	26.3%	56.3%	88.7%	11.3%	0%
1997	0%	2.8%	97.2%	0%	6%	94%	18.7%	30.8%	50.5%	14.4%	85.6%	0%	3.7%	54.9%	41.5%	7.4%	28.2%	64.4%	88.7%	11.3%	0%
1998	0%	0.7%	99.3%	0%	2.2%	97.8%	25.1%	13.8%	61.1%	59.3%	33.1%	7.6%	6.5%	19.9%	73.6%	14.6%	16.5%	69%	94.7%	5.3%	0%
1999	0%	0.1%	99.9%	0%	0.2%	99.8%	24.5%	22.1%	53.4%	8.5%	80.1%	11.4%	2.8%	29.3%	67.9%	2.7%	31%	66.3%	55%	44.4%	0.7%
2000	0.8%	7.6%	91.6%	1.3%	14.5%	84.2%	32.7%	27.7%	39.6%	8.1%	91.9%	0%	4.1%	45.9%	50%	19.4%	29.3%	51.3%	94.7%	5.3%	0%
2001	0%	26.1%	73.9%	0%	41.7%	58.3%	25.2%	63.8%	11%	8.1%	91.9%	0%	3.7%	78.5%	17.9%	13.9%	80.1%	6%	83.4%	16.6%	0%
2002	0%	6%	94%	0%	11.2%	88.8%	26.7%	29.7%	43.6%	23.3%	76.7%	0%	9.3%	52.4%	38.2%	13.2%	25.1%	61.8%	84.1%	15.9%	0%
2003	0%	6.1%	93.9%	0%	10%	90%	21.3%	25.2%	53.5%	8.9%	80.1%	11%	4.1%	41.9%	54.1%	6.3%	25.2%	68.5%	6%	66.9%	27.2%
2004	0%	4.4%	95.6%	0%	9.3%	90.7%	36%	34.2%	29.7%	41.1%	58.9%	0%	31.3%	31.3%	37.4%	19.9%	32.3%	47.8%	88.1%	11.9%	0%
2005	0%	5.7%	94.3%	0%	12.3%	87.7%	23.3%	58.1%	18.6%	2.5%	96.6%	0.8%	2.8%	59.3%	37.8%	3%	58.3%	38.7%	3.3%	96.7%	0%
2006	0%	8%	92%	0%	13.1%	86.9%	29.1%	47.2%	23.7%	85.2%	14.8%	0%	25.6%	45.5%	28.9%	29.6%	32.3%	38.1%	100%	0%	0%
2007	5.5%	16.9%	77.6%	12.6%	25.1%	62.3%	29.3%	40.9%	29.8%	64.8%	35.2%	0%	5.3%	58.9%	35.8%	37.3%	33.4%	29.3%	100%	0%	0%
2008	0%	36.8%	63.2%	0%	50.4%	49.6%	29.5%	55.9%	14.6%	3.4%	96.6%	0%	3.7%	73.2%	23.2%	1.6%	96.1%	2.4%	15.9%	84.1%	0%
2009	0.2%	6.6%	93.2%	0.4%	12.7%	86.9%	23.3%	33.2%	43.5%	2.5%	62.7%	34.7%	3.7%	26.4%	69.9%	5.2%	24.3%	70.5%	49.7%	50.3%	0%
2010	0%	14.8%	85.2%	0%	23.3%	76.7%	27.2%	26.7%	46.1%	10.2%	89%	0.8%	3.3%	38.2%	58.5%	10.2%	38.6%	51.3%	18.5%	81.5%	0%
2011	2.9%	21.5%	75.7%	7.8%	30.4%	61.8%	32.3%	42.1%	25.6%	30.9%	69.1%	0%	13.8%	56.1%	30.1%	27.1%	58%	14.9%	95.4%	4.6%	0%
2012	0%	7.5%	92.5%	0%	12.9%	87.1%	17.9%	20%	62.1%	0.8%	23.3%	75.8%	0.4%	6.5%	93.1%	0.2%	17.2%	82.6%	0.7%	73.5%	25.8%
2013	0%	3.7%	96.3%	0%	7%	93%	20.8%	20.8%	58.5%	1.7%	56.4%	41.9%	2%	23.2%	74.8%	1.4%	17.4%	81.2%	2%	91.4%	6.6%
2014	1.2%	9%	89.8%	2%	16.6%	81.4%	39.9%	16.8%	43.3%	37.7%	58.5%	3.8%	5.7%	25.2%	69.1%	24.6%	21.5%	53.9%	74.2%	25.8%	0%
2015	6.3%	25.3%	68.5%	12.2%	34%	53.8%	31.3%	42.2%	26.5%	79.7%	20.3%	0%	14.6%	50.4%	35%	34.3%	51.3%	14.4%	100%	0%	0%
2016	0%	2.1%	97.9%	0%	3.5%	96.5%	18.3%	17.9%	63.8%	0.8%	8.1%	91.1%	0.4%	3.3%	96.3%	0%	6.7%	93.3%	0%	28.5%	71.5%
2017	0%	9.8%	90.2%	0%	17%	83%	9.4%	43.7%	47%	0.4%	96.6%	3%	0%	30.9%	69.1%	0%	42.5%	57.5%	0%	100%	0%
2018	0%	9.4%	90.6%	0%	12.9%	87.1%	18.6%	17.3%	64.1%	2.5%	19.1%	78.4%	1.6%	2.8%	95.5%	0.3%	7.1%	92.6%	10.6%	77.5%	11.9%
2019	5.9%	9.7%	84.4%	10%	16.1%	73.9%	22.9%	26.6%	50.5%	14%	55.9%	30.1%	2.8%	24.8%	72.4%	10%	29%	61%	49%	51%	0%
2020	0%	18.5%	81.5%	0%	27.3%	72.7%	7.4%	33%	59.6%	0.4%	33.9%	65.7%	0%	8.5%	91.5%	0%	24.1%	75.9%	0%	86.1%	13.9%
2021	2.5%	8.4%	89.1%	4.1%	11.4%	84.6%	17.8%	14.8%	67.4%	0.8%	14%	85.2%	0%	3.7%	96.3%	0%	16.1%	83.9%	0%	68.2%	31.8%
2022	0.1%	7.3%	92.6%	0%	11%	89%	19.3%	20.4%	60.3%	3%	17.4%	79.7%	2%	1.6%	96.3%	1.1%	7.8%	91.1%	23.2%	44.4%	32.5%
2023	0%	2.4%	97.6%	0%	4.5%	95.5%	10.7%	16.1%	73.2%	0.8%	27.1%	72%	0%	3.7%	96.3%	0%	8.3%	91.7%	3.3%	18.5%	78.1%
2024	0%	0%	100%	0%	0%	100%	8.9%	15.7%	75.4%	0.8%	16.9%	82.2%	0%	0.8%	99.2%	0%	1.6%	98.4%	15.2%	47.7%	37.1%
2025	4.5%	18%	77.6%	7.4%	23.1%	69.5%	25.3%	28.4%	46.3%	36.9%	59.3%	3.8%	3.7%	32.9%	63.4%	18.5%	40.3%	41.2%	89.4%	10.6%	0%

Annual Statistics: Mean four-year hydroperiod

Mean four-year hydroperiod (labeled by the year following a four year window, e.g., "1995" represents the span 1991-1994) and standard deviation.

	A		AX		B		C		D		E		F
Year	Mean 4YHP	Mean 4YHP SD	Mean 4YHP	Mean 4YHP SD	Mean 4YHP	Mean 4YHP SD	Mean 4YHP	Mean 4YHP SD	Mean 4YHP	Mean 4YHP SD	Mean 4YHP	Mean 4YHP SD	Mean 4YHP	Mean 4YHP SD
1995	298 days	57 days	285 days	59 days	153 days	28 days	72 days	49 days	188 days	44 days	138 days	36 days	29 days	25 days
1996	329 days	45 days	319 days	53 days	178 days	49 days	112 days	66 days	218 days	64 days	185 days	88 days	53 days	46 days
1997	348 days	17 days	339 days	25 days	185 days	44 days	126 days	47 days	234 days	44 days	208 days	76 days	57 days	43 days
1998	342 days	20 days	331 days	28 days	191 days	41 days	136 days	44 days	234 days	44 days	220 days	69 days	59 days	41 days
1999	343 days	18 days	332 days	25 days	200 days	37 days	127 days	50 days	242 days	47 days	237 days	55 days	48 days	43 days
2000	333 days	12 days	320 days	14 days	188 days	27 days	118 days	35 days	226 days	33 days	216 days	28 days	41 days	30 days
2001	327 days	14 days	312 days	19 days	185 days	27 days	133 days	34 days	231 days	33 days	212 days	30 days	42 days	32 days
2002	308 days	39 days	292 days	43 days	172 days	38 days	134 days	34 days	220 days	48 days	199 days	44 days	50 days	34 days
2003	297 days	36 days	280 days	39 days	166 days	32 days	140 days	21 days	200 days	40 days	196 days	39 days	57 days	29 days
2004	292 days	31 days	273 days	32 days	170 days	35 days	142 days	22 days	196 days	33 days	194 days	38 days	80 days	68 days
2005	286 days	24 days	269 days	24 days	162 days	38 days	130 days	27 days	177 days	36 days	189 days	37 days	84 days	64 days
2006	295 days	11 days	279 days	10 days	168 days	36 days	139 days	35 days	186 days	33 days	200 days	30 days	113 days	76 days
2007	297 days	12 days	281 days	12 days	160 days	37 days	126 days	52 days	180 days	38 days	188 days	35 days	106 days	86 days
2008	294 days	22 days	273 days	29 days	148 days	24 days	104 days	52 days	175 days	34 days	169 days	36 days	63 days	80 days
2009	285 days	31 days	263 days	35 days	147 days	26 days	110 days	53 days	183 days	28 days	168 days	40 days	78 days	82 days
2010	285 days	32 days	263 days	37 days	151 days	29 days	112 days	56 days	190 days	38 days	174 days	47 days	56 days	58 days
2011	288 days	35 days	264 days	38 days	160 days	34 days	129 days	49 days	211 days	41 days	186 days	47 days	82 days	58 days
2012	276 days	36 days	257 days	37 days	154 days	34 days	137 days	36 days	203 days	45 days	185 days	45 days	90 days	44 days
2013	288 days	33 days	269 days	34 days	171 days	34 days	160 days	51 days	224 days	49 days	204 days	50 days	109 days	66 days
2014	297 days	38 days	278 days	40 days	179 days	37 days	162 days	53 days	232 days	50 days	211 days	54 days	127 days	66 days
2015	293 days	34 days	274 days	38 days	172 days	41 days	154 days	61 days	229 days	47 days	204 days	58 days	112 days	74 days
2016	295 days	31 days	273 days	39 days	175 days	37 days	145 days	74 days	233 days	42 days	203 days	61 days	109 days	78 days
2017	306 days	42 days	287 days	53 days	184 days	44 days	163 days	101 days	252 days	67 days	225 days	90 days	128 days	107 days
2018	298 days	41 days	279 days	52 days	186 days	51 days	161 days	101 days	248 days	68 days	217 days	91 days	121 days	106 days
2019	301 days	41 days	284 days	52 days	204 days	46 days	196 days	99 days	263 days	68 days	242 days	89 days	142 days	99 days
2020	312 days	32 days	296 days	40 days	218 days	31 days	221 days	61 days	282 days	45 days	263 days	60 days	159 days	75 days
2021	295 days	22 days	276 days	26 days	215 days	29 days	207 days	45 days	268 days	28 days	241 days	37 days	140 days	42 days
2022	295 days	20 days	276 days	24 days	218 days	24 days	220 days	40 days	279 days	21 days	254 days	33 days	154 days	45 days
2023	300 days	27 days	282 days	33 days	221 days	30 days	222 days	43 days	285 days	28 days	262 days	47 days	158 days	54 days
2024	306 days	26 days	293 days	32 days	229 days	28 days	240 days	21 days	297 days	20 days	284 days	37 days	192 days	46 days
2025	326 days	29 days	316 days	35 days	242 days	33 days	249 days	23 days	311 days	25 days	308 days	34 days	193 days	45 days
2026	322 days	34 days	312 days	41 days	233 days	42 days	223 days	65 days	300 days	44 days	287 days	70 days	158 days	87 days

Dry count statistics

Cumulative number of days between March 1st and July 15th that each CSSS subpopulation area is at least 40% dry (30% for AX). Discontinuous hydroperiod is the annual count of days that each CSSS subpopulation is >60% wet (>70% for AX).

	A Annual		AX		B		C		D		E		F
Year	≥40% dry	DHP	≥30% dry	DHP	≥40% dry	DHP	≥40% dry	DHP	≥40% dry	DHP	≥40% dry	DHP	≥40% dry	DHP
1991	80 days	226 days	80 days	214 days	95 days	135 days	137 days	12 days	88 days	177 days	121 days	111 days	137 days	0 days
1992	96 days	250 days	103 days	202 days	114 days	127 days	123 days	19 days	104 days	102 days	114 days	97 days	131 days	6 days
1993	0 days	365 days	2 days	362 days	121 days	117 days	136 days	78 days	114 days	161 days	114 days	136 days	137 days	2 days
1994	29 days	336 days	61 days	304 days	137 days	138 days	137 days	123 days	106 days	188 days	137 days	132 days	137 days	39 days
1995	0 days	365 days	0 days	365 days	99 days	221 days	112 days	188 days	86 days	276 days	57 days	308 days	125 days	51 days
1996	24 days	341 days	58 days	307 days	104 days	124 days	111 days	62 days	96 days	184 days	111 days	191 days	137 days	6 days
1997	4 days	361 days	91 days	273 days	93 days	186 days	99 days	150 days	93 days	187 days	90 days	216 days	133 days	4 days
1998	36 days	329 days	65 days	300 days	114 days	212 days	137 days	58 days	88 days	263 days	97 days	248 days	137 days	2 days
1999	35 days	330 days	75 days	290 days	100 days	192 days	124 days	147 days	106 days	232 days	110 days	229 days	137 days	46 days
2000	43 days	322 days	85 days	280 days	134 days	112 days	134 days	144 days	130 days	179 days	125 days	176 days	137 days	23 days
2001	93 days	428 days	128 days	182 days	137 days	139 days	137 days	140 days	137 days	145 days	137 days	157 days	137 days	49 days
2002	74 days	291 days	100 days	234 days	104 days	143 days	107 days	120 days	103 days	140 days	106 days	210 days	128 days	9 days
2003	61 days	287 days	88 days	235 days	85 days	143 days	99 days	145 days	95 days	196 days	86 days	220 days	89 days	186 days
2004	88 days	277 days	122 days	194 days	137 days	101 days	137 days	96 days	137 days	108 days	137 days	182 days	137 days	35 days
2005	78 days	276 days	99 days	230 days	111 days	144 days	109 days	178 days	103 days	174 days	111 days	195 days	111 days	187 days
2006	82 days	283 days	110 days	255 days	105 days	115 days	133 days	66 days	127 days	105 days	127 days	110 days	134 days	12 days
2007	39 days	326 days	92 days	183 days	94 days	142 days	117 days	53 days	90 days	159 days	102 days	110 days	137 days	0 days
2008	97 days	209 days	116 days	189 days	137 days	103 days	137 days	134 days	127 days	148 days	125 days	164 days	137 days	115 days
2009	79 days	286 days	91 days	254 days	93 days	183 days	97 days	179 days	86 days	221 days	87 days	226 days	130 days	53 days
2010	27 days	338 days	88 days	237 days	125 days	135 days	112 days	138 days	116 days	201 days	94 days	187 days	110 days	122 days
2011	117 days	342 days	122 days	194 days	133 days	115 days	137 days	96 days	133 days	155 days	131 days	133 days	137 days	32 days
2012	54 days	310 days	82 days	251 days	70 days	221 days	79 days	219 days	64 days	241 days	74 days	231 days	88 days	188 days
2013	37 days	328 days	63 days	292 days	75 days	205 days	89 days	199 days	89 days	229 days	83 days	244 days	106 days	150 days
2014	70 days	295 days	115 days	250 days	119 days	89 days	137 days	99 days	122 days	231 days	124 days	184 days	137 days	45 days
2015	86 days	279 days	137 days	139 days	132 days	118 days	137 days	58 days	130 days	133 days	137 days	105 days	137 days	25 days
2016	0 days	365 days	6 days	359 days	103 days	226 days	69 days	279 days	20 days	345 days	0 days	365 days	23 days	274 days
2017	87 days	278 days	98 days	240 days	103 days	203 days	115 days	191 days	105 days	224 days	99 days	216 days	137 days	122 days
2018	49 days	316 days	70 days	260 days	81 days	231 days	90 days	252 days	70 days	295 days	74 days	291 days	137 days	129 days
2019	35 days	328 days	101 days	219 days	107 days	184 days	129 days	153 days	105 days	246 days	105 days	220 days	131 days	77 days
2020	81 days	284 days	124 days	214 days	99 days	211 days	95 days	217 days	81 days	284 days	89 days	236 days	115 days	185 days
2021	72 days	348 days	112 days	245 days	123 days	236 days	108 days	232 days	96 days	269 days	87 days	250 days	127 days	168 days
2022	17 days	348 days	59 days	306 days	88 days	198 days	90 days	273 days	66 days	299 days	32 days	333 days	118 days	117 days
2023	39 days	326 days	78 days	287 days	83 days	223 days	100 days	220 days	61 days	296 days	66 days	299 days	89 days	248 days
2024	0 days	365 days	12 days	353 days	57 days	284 days	68 days	271 days	21 days	344 days	19 days	346 days	100 days	150 days
2025	70 days	295 days	120 days	228 days	125 days	147 days	137 days	96 days	119 days	223 days	126 days	135 days	137 days	29 days

For 2026-03-25
	≥40% dry	DHP
AX	25 days	0 days
A	25 days	2 days
A1	25 days	0 days
A2	25 days	0 days
B	15 days	10 days
C	25 days	0 days
D	15 days	10 days
E	25 days	0 days
F	25 days	0 days